All Questions
44
questions
0
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75
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Patterns of craniofacial topology
There are animals which are not directly related but have similar craniofacial topology.
For example: koala, donkey, mouse, turtle, parrot all have features seemingly belonging to same topology, ...
- 109
3
votes
1
answer
66
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Can hunting of large specimens of a species make the size and weight of the species tend to be smaller?
Siberian tigers in the wild don't grow as much as they used to be in past (in the 1900s).
Their average weight was measured 176 kg in 2005 study. But it was also said that those tigers observed in ...
- 31
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0
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24
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What are the effect of radioactivity on grey wolves in Chernobyl?
I am doing some research about the effects that radioactivity has and is having on grey wolves in Chernobyl and more particularly on their genetics, but maybe also looking at the populations in the ...
34
votes
6
answers
7k
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Why didn't Escobar's hippos introduced in a single event die out due to inbreeding
Today I read a BBC Report about how Pablo Escobar had once imported 4 hippos (1 male, 3 female) into his estate in Colombia for his private zoo. After his downfall, while other species were shipped ...
- 451
-2
votes
1
answer
129
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The Perfect Predator? [closed]
I’m not a biology major or even studying it in any way so I apologize if this makes no sense.
I’m curious, if say the Jurassic Park team came up to you and asked you to genetically engineer the ...
- 1
1
vote
1
answer
141
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Are there animal species where some females have greater amounts of male-associated qualities than average males?
In the human species, some women ( a meaningful, though not large percentage) are taller and stronger than the average man.
Is a similar thing true in the animal kingdom? Are there some meaningful ...
- 141
0
votes
1
answer
258
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If coelocanths are more related to humans than groupers -does a Coelocanth's DNA literally have more sequences in common with a human than a grouper?
Would a coelocanth and a human still have more sequences in common than a coelocanth and a grouper? Would the coelocanth and human dna basically "look" more similar than either would to a ray-finned ...
0
votes
1
answer
104
views
What species would this be?
A common way to define species can be found on Wikipedia:
A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can ...
- 103
0
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0
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29
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Is Wikipedia a good source of taxonomy? [duplicate]
I have been quite interested in biology lately,and I would like to know whether it is a good choice to look up taxonomic information there.
1
vote
1
answer
474
views
Why do some animals have beards?
Why do some animals such as some Goats, Ibex, Orangutan etc, have long well-shaped beard like men?
- 67
2
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0
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163
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Honeybee relatedness: workers and nephews
This is my first question on this site. If anyone could help me get to the bottom of it, I would be very grateful.
I am currently working on a lecture on kinship in animals. It goes without saying, ...
- 21
2
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0
answers
41
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why hens determine the sex of the chick?
So, I have an exercise where I have to correct the second part of the sentence. It goes like this:
In hens, the sex of the chicken is determined by hen, because the hen is the heterogametic ...
- 21
-1
votes
1
answer
157
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Neutral genetic mutations in eukaryotic cells [closed]
Why are most mutations in eukaryotic cells neutral? i.e. have no effect on the phenotype.
1
vote
0
answers
35
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Overall, for the most part, which is more important--capturing prey or surviving predators or parasites?
For animals in nature, does selection intensity tend to be stronger upon abilities used against parasites or predators or abilities used against prey? Any empirical reports would be appreciated.
I ...
- 466
0
votes
1
answer
72
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Bottleneck effect
Is it true that animals that faced a severe bottleneck will have genetic deficiency for a long time? Does it mean they will all look the same for a long time?
