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2
votes
1answer
20 views

If hermaphrodite C. elegans can reproduce with females?

C. elegans can self fertilize, or they can mate with males. But are they able to mate with females? Or is there some kind of morphological barrier that prevents that?
0
votes
2answers
59 views

What are the genus and species name of different breeds of dog?

Can you refer me to a good source containing the genus and species name of different breeds of dogs?
6
votes
1answer
43 views

Cross-integration of puma subspecies populations

A major concern of conservationists in south Florida is the population of native Pumas, the Florida Panther. Until recently, it was thought that the Pumas were a genetically distinct subspecies, ...
2
votes
1answer
29 views

Sansevieria species specification needed

What are the botanical differences between the species S. parva and S. senegambica? Please highlight the main ones. I have 2 groups of plants. One with label "Sansevieria dooneri" (a synonym of S. ...
6
votes
2answers
70 views

Which species were first described by Charles Darwin?

There are many plants and animals named for the naturalist Charles Darwin, such as Darwin's Frog (Rhinoderma darwinii), but which were named by him? I'm finding it difficult to find such a list.
4
votes
1answer
74 views

Does a non-extinct gliding species of bird exist?

According to wikipedia was Archaeopteryx rather glider than capable of active flight. As a hunting strategy it crawl up to a tree (or other high positioned place) and glide from it to a prey. Most of ...
3
votes
1answer
119 views

List of Asymmetric Animals

The (male) Fiddler Crab is a famous example of an animal whose morphology exhibits neither mirror nor radial symmetry: (Image source) List of animals featuring external asymmetry is a Wikipedia ...
10
votes
2answers
264 views

Have we ever observed two drosophila lineages that evolved reproductive isolation in labs?

Background The standard definition of species refers to the concept of reproductive isolation. If two lineages are found to be reproductively isolated, then we consider these two lineages to belong ...
1
vote
3answers
59 views

What problems do invasive species cause ?

Why do we value species? What is so bad about invasive species? Why value biodiversity?
2
votes
1answer
137 views

How many species have existed on earth? [duplicate]

I found a paper estimating the number of species currently living on earth. Now I'm wondering If anybody tried to estimate the number of species that have lived on earth. I'm familiar with problems of ...
4
votes
4answers
256 views

Biodiversity is restricted by genome combinatorics?

Me and some friends are interested in opinions for the following: Conjecture The maximum number of species must be limited by the maximum combinatorial/permutational space that can be occupied ...
1
vote
1answer
82 views

How do I compare the variance of a distribution of species in one area versus another?

It's possible that this question is better suited for stack overflow, but I think the ecologists on this site might be better equipped to answer it. I'm trying to study two geographically-isolated ...