Questions tagged [species]

The basic unit of taxonomic classification.

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1answer
356 views

Usage of “lineage” over “species”

Remi.b has suggested here: The concept of species is poorly defined and is often misleading. The concept of lineage is much more helpful. IMO, the only usefulness of this poorly defined concept ...
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How likely is it that we will discover a new species of big cat? [closed]

So, I've been reading some articles about these "scandals" where everybody thought that there was a new species of feline discovered, from some weird skull or carcass or whatever. And always, by the ...
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Is there any non-pathogenic gram negative bacteria?

In the category of Gram-negative bacteria, is there any non-pathogenic species? Is such a list of non-pathogenic gram-negative bacteria's available? Can you give maximum 5 examples of such bacteria ...
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1answer
87 views

How is it possible for a new species to evolve? [closed]

Suppose a new species is created from a random mutation that happened during an instance of reproduction in an existing species. How can that new species survive and flourish if there only exists one ...
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My daughter taken a photo of a species [closed]

My daughter is studying in 4 the std. She is interested in species related study. Pls guide her.
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58 views

What species is most prolific?

What species represents the largest biomass on earth, ie, how much does the entire population weigh? Also, what species has the most members?
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288 views

How can paleontologists identify morphologically different fossils as members of the same species?

I recently saw a documentary about Tyrannosaurus rex, which detailed the growth stages of the dinosaur. Apparently, it underwent a huge growth spurt at around 14 years of age, growing into the massive ...
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1answer
113 views

Practical Question about Evolution, Population Genetics and Speciation

North American cicada male of the genus Magicicada sing depending on the species at different times of the day and attract the females of the corresponding species. The species are very similar, but ...
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3answers
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How many generations does it take for one species to become a new one?

First lets consider that a species is a group of individuals that can reproduce by breeding fertile offsprings. It's usually said that evolution takes a very long time. Lets say that 1000 generations ...
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3answers
158 views

Is it possible to artificially select for flight in pigs?

After reading this rant by Fodor, as a layperson, I was idly wondering whether it would be possible to artifically select for flight in pigs. Of course by that time the porcine lineage will probably ...
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1answer
107 views

Limit on the Number of Facial Phenotype [closed]

Individuals of each species all have unique facial structure variations (shape of nose, position of chin etc) from humans to birds and fish etc. We humans don't seem to be reaching mathematical limit ...
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1answer
105 views

Can any one identify this insect from Lokhandwala, Mumbai India?

I found this insect on my bed. I have never seen such creature before. Can any one identify this?
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1answer
90 views

Interbreedability between current humans and his ancestors

I want to know the first point of time in the past when genomes have diverged so far from modern human genomes so that they both (human and ancestors) are not interbreeadable anymore and can be seen ...
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99 views

How to mark an ant with the least disturbance to the ant and the nest

How would one go about marking one or more ants in a nest so as to least disturb the ant and the nest? The goal is to be able to know which ant you marked months, or many years up to a lifespan later, ...
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What are the chemicals present in body of paddle worm which makes it show biolumniscence [closed]

Paddle worm is the light emitting species i want to know that 1. What are the chemicals which produce this light? 2. For what purpose it needs this light?
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What is the main difference between “Terminalia ivorensis” and “Bucida buceras”?

Google images yields photos of similar trees, but they have separate Wikipedia article. I want to know the major difference allowing to identify which is "Terminalia ivorensis" and "Bucida buceras".
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66 views

Species of dinosaur with longest fossile record (no birds!)

There were many species of dinosaurs and many got extinct long before the whole clade disappeared. I am wondering which species has shown the longest fossile record. Since birds descend from dinosaurs,...
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1answer
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Frog in Akaka / Loango Région Gabon

I was recently in Gabon, and I did some long and serious treks with Pygmées into some forest mostly to see Chimps and Gorilla around the Akaka area in Loango national park. During a trek in forest I ...
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Species I.D. hardwood tree

There are two of these trees, growing in old fence rows, along my yard, in central VA, Augusta County, Shenandoah Valley. They have smooth, leathery leaves, pale wood, quite hard to cut, and tough to ...
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Identify this insect, found in Central Vietnam, with long antennae, black wings, and red body [duplicate]

Last year this insect landed on my hand when visiting the My Son city ruins in Central Vietnam. I've been trying to identify the insect, but until now without result. Can you help me? Or do you know ...
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1answer
60 views

What species is this spider?

A friend of mine saw this monstrosity in Taiwan. The photo isn't very clear but you can't blame her considering it was the size of her face. Wanted to know what species it is so I know where they ...
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1answer
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How is DNA testing used to differentiate between different species?

How is DNA testing used to determine that specimens belong to different species, rather than being subspecies, or members of the same species? Usually the definition of species is about the ability to ...
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1answer
91 views

can anyone identify this plant please?

Seen in the med and have it in my garden
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1answer
6k views

What is this black and white worm in a white case?

The case is very small and it's an off white color. The thing living inside can come out of either end. It's a black and white looking worm. It will poke its head out and move everywhere! They are ...
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2k views

What do we mean by distribution of species? [closed]

What is meant by distribution of species in the following context? density-independent factors tend to limit the distribution of individuals and therefore of species.
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Can someone identify this ant queen?

I know it's kind of hard to see but can anyone tell what it is?
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2answers
151 views

Picture of spider for identification

Would like to get spiders identified . Specimens can be sent for detailed examination if required . Spider seen on floor inside house - at Phoenix USA White off color spider on twigs and flowers of ...
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1answer
357 views

Is this a variety of banana slug (Ariolimax columbianus)? (California)

These very dark (dark grey to black) banana slugs are an anomaly. I live on the north coast of California and see many slugs every day. These particular slugs I find only on the west-facing headlands ...
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1answer
205 views

How does one confirm the discovery of a new species of plant/animal

Hearing from the National Geographic and the news about the discoveries of new species of plants/animals, I was wondering how can a person confirm when they have actually discovered a new species of ...
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1answer
799 views

Are there any half-evolved animals alive today? [closed]

I know that there are animals that are "simpler" than other animals but are there any that are half-evolved? Are there any animals with half-evolved functions, like arms, legs, etc? This was part of ...
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Can any one help id this bug or at least tell me if it could be biting my kids

We live on the gold coast in australia. We started looking into what these bugs were after my son became covered in severe bites. Hes always reacted a little bit to bites but this was intense. The ...
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Complete list of touch sensitive plants

I am not sure whether the word "touch sensitive" is precise enough. What I am looking for is a list of plants that respond to touch noticably like Mimosa Pudica. I only know of Mimosa Pudica example. ...
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2answers
163 views

Example of species that went extinct because of excessive hunting by non-humanoid predators?

I was wondering if there were any species that went extinct for being excessively hunted/eaten by predators? I don't mean human hunting. For example, I wish to know if there's a species of frog that ...
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1answer
430 views

What kind of spider is this (reddish spider)?

I just saw this spider on my door and was wondering what kind of spider this is. information Country: The Netherlands (Europe) Color: quite reddish (maybe an idea why this one is reddish?) pictures
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1answer
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Parents that eat their own children

I am told that there are some species, like fish or rabbits, that if let, will eat their own children. If this is true, how does a species like this exist? Shouldn't the fact that they kill their own ...
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1answer
7k views

Does it make sense to classify all humans in a single species?

For what biological reasons do we consider that all human beings belong to the same species? A Thai and a Nigerian share a common ancestor that is 140,000 years old (see Gravel et al. 2010 and this ...
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1answer
133 views

Which requirements are needed for 2 different species to be able to have offsprings?

Sometimes different species mate and they are able to have offsprings, usually with anomalies. Are there known requirements for 2 different species to produce offsprings? Why species like the lion and ...
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2answers
91 views

Looking for a database of plant features

To perform some private data science experiments I am looking for accessible information on morphological plant features (tabular information would be best). Crawling the web I found many websites ...
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1answer
482 views

Examples of creating a new animal species by humans

So recently, I was arguing with my friend who happens to be creationist. As he does not believe in the "theory of evolution" I asked him how he can explain such a big diversity in the dog Canis ...
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1answer
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Minor differences in morphology of a snake: Why designate it a different species?

I was motivated to ask based on an answer to another question that I read on SE-Biology: You can differentiate this species [Ashok's Bronzeback (Dendrelaphis ashoki)] from closely related D. ...
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1answer
188 views

Why and when did the misconception about the Panther being a species came to be?

People usually call Panther to any big black cat, I did so until I watched Apocalypto and saw they were calling the black cat Jaguar which confused me. (I have no biology knowledge) It was kind of ...
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1answer
419 views

Lactobacillus casei and paracasei

I am carrying out a study of lactobacilli isolated from different samples. Genus and species are identified using a sequenced 1000pb long 16S fragment in BLASTn. I cannot distinguish between L. casei ...
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1answer
56 views

How to automatically obtain the “kingdom” of a species from its name?

I'm looking for a simple way (such as a database) so that a program can get the kingdom of a species, knowing its name (such as "Prunus persica"). As a matter of fact the species I'm concerned with ...
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1answer
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Can a species populated solely by males be saved from extinction?

How, if possible, can a species be saved from extinction if the only surviving population are males that cannot reproduce with each other?
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1answer
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Besides X. morgani praedicta, are there any species whose existence was predicted before they were discovered?

The orchid A. sesquipedale has a spur so long that at the time of its discovery, no insect was known that could pollinate it. This led Charles Darwin to predict the existence of an undiscovered moth ...
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What is the number of species known through paleontological evidence?

Essentially, this question could also be asked: how many species do all of the paleontological specimens in collections (or collections records) represent? I recognize that species is a temporal ...
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What is the difference between a species tree, a gene tree and a phylogenetic tree?

I have found websites and text books disagreeing over this. For example, Phylogenies are also known as “species trees”... http://biologos.org/blogs/dennis-venema-letters-to-the-duchess/evolution-...
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Where can I get a file/list of the common and scientific names of species?

I am searching for an un-encoded data file with common and scientific names for example of a few hundred species or tens of thousands, where I can search the common and scientific labels of organisms.
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Is there no such thing as species? [duplicate]

If you recreated intermediate species between every species on the evolutionary tree, would every species be able to reproduce with each other through a series of intermediates? Would this blur the ...
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Where should I go for online information on animals endemic specifically in Mozambique?

I've been involved with the citizen science project "Wildcam Gorongosa" for over half a year now (website, forum). As there are lots of unexperienced volunteers, many questions are being asked. Often ...