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4 votes

Can instincts disappear after a long period of non-usefulness?

If it is like any other genetic trait, it will only be weeded out if there exists selective pressure that makes it counter-productive. Merely not being useful is not necessarily sufficient. Though I ...
DKNguyen's user avatar
  • 920
4 votes

What happens to silverfish when we throw them out the window?

Silverfish prefer high humidity and warmth. Ctenolepismacalvum (Ritter, 1910) was recently found in Japan at a temperature of 20-30°C and 50-60% RH. As long as there are pieces of bark, wet grass or ...
pawelek zzz's user avatar
  • 1,087
2 votes

How to interpret this statement on missing heritability

Missing heritability refers to the fact that while we make heritability estimates using e.g. midparent regression, we can't actually find gene variants whose effects we can add up to the amount of ...
Maximilian Press's user avatar
1 vote

Which predator / prey pair of species have the most drastically different body size?

I think the Black Swallower (Chiasmodon niger) is a good contender. This fish can (at least according to Wikipedia and reference therein) can swallow other fish that are up to twice its length and 10x ...
bob1's user avatar
  • 12.5k
1 vote

Behavioural experiment on Nasonia Wasps

I’ve previously used Posca pens to mark wasps during experiments - I think that’s going to be about as non-invasive as you can get without using some kind of advanced video tracking techniques. But ...
user438383's user avatar
  • 2,351
1 vote

Why do spiders hang up dead bugs?

It seems they do that to save food for later, at least that is what this source suggests. Could also be a sanitary thing, if the bug is dead for some time. Please be nicer to the invertebrates around ...
nika's user avatar
  • 189
1 vote

Do animals exhibit handedness (paw-ness?) preference?

A small number of peer reviewed studies seem to show that cats generally do have a paw preference and exhibit handedness similar to humans. Cats often use their “dominant” paw to reach for food or ...
user81001's user avatar

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