Questions tagged [sociality]

Communal living, cooperation in care of young, and/or division of labor within animal species.

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3answers
462 views

How does “be altruist to those who are similar to you” evolve?

There are many cases when people commit altruism. One is relationship. I am willing to die for 2 of my children or 8 nieces, say an evolutionary psychologist. Another is reciprocal altruism, which is ...
6
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3answers
4k views

Polymorphism in cnidarians?

To me, the phenomenon of polymorphism in cnidarians is particularly troubling. I gather that it essentially refers to existence of various different forms or kinds of individuals, i.e. zooids and ...
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1answer
248 views

Modern reference for Kropotkin's lazy bees

I have been reading through Peter Kropotkin's Mutual Aid: A Factor of Evolution and he mentions a curious fact about bees (bolding by me for emphasis): predatory instincts and laziness continue to ...
9
votes
3answers
233 views

Intuitive explanation for Kin- and Group- selection

It is known from theoretician in the field of kin selection that kin selection (inclusive fitness theory) and group selection are actually two sides of the same coin. In other words, these two ...
12
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2answers
4k views

Do ants really dispose of their own dead, and how/why?

I just read this from Wikipedia's Swarm Behavior article: Despite the lack of centralized decision making, ant colonies exhibit complex behaviour and have even been able to demonstrate the ability ...
8
votes
1answer
372 views

Cannibalizing behaviour in ants

Today I saw an ant question biology and was reminded of a picture I had clicked 2 years ago. Here, you can see these black guys cannibalizing this other black guy. To reiterate, these guys had ...
6
votes
1answer
247 views

Why social animals attack odd members of their own group?

Some social animals are known for attacking odd members of their own group, for example, chicken: If you have a large group of one type of chicken, they will usually gang up on the one or two ...
3
votes
1answer
84 views

Altruism in viscous (asexual) populations

The viscosity of a population is the tendency of offspring to remain near their place of birth. Taylor 1992 ("Altruism in viscous populations") provides a model to study how viscosity affects the ...