Questions tagged [species]

The basic unit of taxonomic classification.

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40 views

Why is it difficult for germs to jump species?

If you haven't watched CGP Grey's video Americapox: The Missing Plague, I suggest you watch it. It's an excellent video. One assertion he makes is that "germs jumping species is extraordinarily ...
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Is there an equation/method for finding minimum plant species needed to support maximum pollinator species using a data set?

I'm looking to create a seed package based on a dataset of plant-pollinator associations. I currently have a list of documented interactions between specific plant species and pollinator species. I'm ...
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What is the defining characteristics of a Gap Species?

For the following competitive exam question: A road is constructed through a tropical rain forest, following which a population of a species of butterflies declines. Which of the following is NOT a ...
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If species are reproductively isolated, then how are interspecific hybridisations carried out?

during fertilisation there is compatibility test done so that both sperms and eggs are of same species. the zona pellucida of egg bears sperm specific receptor proteins(ZP3 receptor proteins) which ...
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What is this moth?

I found this moth sitting on a flower of mine in northwestern Indiana. Anyone know what species this is?
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Why are diseases generally specific to a particular species

"Zoonosis" is the process of transmitting a disease from an infected animal to a human. This suggests that animal-to-human transmission is not common. HIV is believed to have first spread to humans ...
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Are black panthers the same as jaguars?

I google the scientific name for black panthers. I get panthera onca. I google panthera onca, and I get jaguar. Can someone explain what is going on? Are they the same? What is the real scientific ...
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what is “a group of living things that can interbreed and produce full interfertile offspring”?

lets call this term "collection" Example: group of humans. what is not a "collection" horses and donkey: can't produce full interfertile offspring, lions and tigers: can't produce full interfertile ...
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Unidentified Spider

Apologies for the rubbish quality of the image, but I found this spider while in the shower. I’m not exactly sure what species it is and wonder if someone can help me out. I live in southeast ...
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Species identification: what kind of fungus is this?

Found in a cave Location: Israel The white tentacles appear to be sticky. When they touch something, they stick to it and detach from the main body
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help identifying marine item found on beach

Need help identifying this hard waxy egg like item found on beach in Destin, FL (USA). It feels waxy and semi hard. Also smells like squid or real fishy. it is also semi transparent with dark tan ...
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How many different DNA of different species are there in the DNA of modern humans?

According to this DNA of extinct human species Aboriginal Australians, Pacific Islanders carry DNA of unknown human species, research analysis suggests and according to this Neanderthal ...
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Have there been multiple aboriginal species of dogs?

In "Variation under Domestication", Darwin writes that: I may here state, that, looking to the domestic dogs of the whole world, I have, after a laborious collection of all known facts, come to the ...
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Is there a definition of species where Lions and Tigers are the same species?

According to Species concepts There are at least 26 recognized species concepts And according to Why are lions and tigers considered different species (not sure how reliable this source is though, ...
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What are the sufficient criteria that make an entity a living homo sapiens? [closed]

When I say criteria I mean like x biological functions or y genetics. If it were to be appearance,anatomy. A corpse completely looks like a man. Moreover a person who has had their 4 limbs amputated, ...
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What is a “Valid Species”?

I read in a reference book on Google Books (Biology of Termites: a Modern Synthesis, eds. Bignell, Roisin, and Lo) that the termite Heterotermes perfidus found on the South Atlantic island of St ...
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How many different species have existed on Earth?

NOTE: Someone else asked this same question a few years back, but it was incorrectly marked as a duplicate and so the question may not have been answered satisfactorily. I'm asking it again, in hopes ...
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What is this tiny, transparent creature found in my home?

Found these in my bathroom, everything was literally crawling with them - there were thousands of those on walls, sink, bathtub... I have all surfaces were sprayed with chlorine spray and with bug ...
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What is this soft cased worm-like creature?

Found this creature in the bathroom Features which ought to help for identification: Size = 1 cm Soft casing Can emerge from either end of its case and thus reverse the direction it crawls. Many ...
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Are there poisons that affect only mammals but not reptiles

Are there poisons that affect only mammals but not reptiles or crustaceans? E.g. hemotoxins which affect hemoglobin but not hemocyanin or specific Na+ channels? Looking for a "nice" poison/disease as ...
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Worm Identification

Please identify the attached worm and larvae. Location: Payette, Idaho Approximate size: 1 mm Found in home.
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Cross species effects of Apis mellifera queen pheromones

I am looking for studies that show effects of Apis mellifera queen pheromones on other species. An example of one such study is where A. mellifera queen pheromones deactivated the ovaries of ...
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Database of colors mapped to species

I was wondering about the physics of color, and now am interested in finding out if there are any resources (databases, text files, html tables, or pdf listings) of species and their associated colors ...
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Help me ID snake

Could someone please tell me if this is a cotton mouth? Found 2 on my back porch, one got away. Location: Fayetteville, AR (USA) [Note: there are several ponds nearby]
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What species of frog is this?

I was walking around outside my house when I found this little guy clinging to the outer wall of my house. The house in question is located in Indiana, United States. What is interesting to note is ...
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Why are mules/donkeys aggressive when faced with predators but horses are not?

I came upon an interesting quote after going down the rabbit hole on a variety of subjects. While deep in the data, I came upon this quote oat and farm animal owners likes to have mules with their ...
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Tiny bug in Amman-Jordan

I saw this bug many times in my room this spring. Can any one help identifying it?!
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what is the name of this fish?

]2 fishes are of length 2 to 3 inches.
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What makes an E.coli an E.coli, genotype or phenotype?

According to this paper, among 61 strains of E. coli they studied only 6% of the genes are common in all. Which means that the overwhelming majority of the genes are not shared. And wikipedia ...
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Mild introduction to selective advantage of intelligence/nervous systems in animals?

I have a general understanding of why intelligence, i.e. nervous systems in animals, is advantageous: processing information allows an animal to adapt to its environment dynamically and perform ...
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Can two different species in the same genus generally succeed in the same habitat?

This plant-care website writes In the context of plant care, usually most plants within the same genus need the same environmental conditions suitable for plant growth. If the genus of a plant is ...
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What is this insect

This was found in my house in florida
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What kind of fish is on the picture?

I saw these fish in a video at an art exhibition, I'd like to find out what kind they are.
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Do ring species exist?

In trying to understand evolution better, I have been looking at examples of speciation, and have thus come across the topic of ring species. I have tried to find concrete examples of how these work, ...
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Anyone know what emerged from these cocoons?

Found a little universe in the back of a ceramic decoration I put up outside in summer...the concave back was full of grainy soil and several exited cucoons...anyone know what critter this is/was?!
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I'm trying to identify this salamander-looking creature I found in my house today in Coos Bay, Oregon. It is about 2" long. What is it?

This is about 2" long. It is white on its underside and looks like a small salamander, except for it being white underneath. It is about 1/8th inch wide.
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What is my pet tortoise' species?

I got this tortoise from my uncle. He said that it wandered into his yard. Found in Khon Kaen, Thailand during the summer.
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What is the name of the bug that emerging from a wood chip like cocoon?

We found it on the wall of a home at West Palm Beach Florida. Is this a kind of infestation or a sick tree near the house fall on the wall?
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What is the name of this spider and is it poisonous?

We found it between Palm trees in the backyard of a home in West Palm Beach Florida.
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What kind of snake is this

Found this outside on patio in northern Virginia, Ashburn area, September 2018. It's about 12 inches. Is it a water snake or rattlesnake?
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What is this? Found crawling across ground under oak tree. Six arms waving, I broke off 1 trying to pick it up. Less than 1 inch long

Crawled like snail. No slime trail. Less than one inch. Six arms, I broke one off.
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What species of butterfly is this? Picture taken on 9-18-2018, near Helena, Mt

Butterfly picture taken on the 18th of September 2018 at an elevation of 1800 meters (6,000 feet) near Mount Helena in Montana, USA.
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The meaning of and standards for “specimen numbers”

I just read here: For example, in the research collection of the Natural History Museum in London, there is a bird specimen numbered 1886.6.24.20. This is a specimen of a kind of bird commonly ...
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Any examples of a group of micro-organism that continuously spans two or more species classifications?

Are there any examples of a group of micro-organisms where two different, established species are designated and these two groups meet all aspects of the definition of species (perhaps can not ...
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Is Human a race? [closed]

Is it correct to say that 'humans' are a race? Will it also include apes and chimpanzees? Can I use the terms 'species' and 'race' interchangeably?
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Question about the quantity of orchid species and genera

One flower which I am reminded of is the orchid and conjointly, the Orchidaceae family. I am surprised when discovering there is an abundance of species and genera, hence I would like to know the ...
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Can Anyone Tell Me , Which Insect or I think Moth Is This

Region : Asia ( India ) , Size is about : 4 cm . Since yesterday this Insect is in the same place . I don't know any other info , I was just curious to know about this Insect.
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Can anyone identify this bird - small flock in ireland?

I saw small birds in a flock of about 6 or 8. Here are details that can be seen on my best photo - The beak looks pointed and also the legs are quite long and the eye has a bar across it. I have a ...
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Time taken for species to become endemic [closed]

Is it known how long species take to become endemic? I know from examples such as Canada which have no endemics following the end of glaciation that the process must take at least 10 thousand years, ...