Evolution

New research constructs ant family tree

Anyone who has spent time in the tropics knows that the diversity of species found there is astounding and the abundance and diversity of ants, in particular, is unparalleled. Scientists have grappled for ...

Apr 22, 2013 4.5 / 5 (6) 0

Extinctions reduces speciation

The same factors that increase the risk of species extinctions also reduce the chance that new species are formed. This is concluded by two biologists at Umeå University. Their findings are published in ...

Apr 04, 2014 3.8 / 5 (5) 1

Not all altruism is alike, says new study

(Phys.org) -- Not all acts of altruism are alike, says a new study. From bees and wasps that die defending their nests, to elephants that cooperate to care for young, a new mathematical model pinpoints the environmental conditions ...

Apr 30, 2012 4.5 / 5 (4) 1 | with audio podcast

From dark hearts comes the kindness of mankind

The kindness of mankind most likely developed from our more sinister and self-serving tendencies, according to Princeton University and University of Arizona research that suggests society's rules against selfishness are ...

Jan 22, 2013 3 / 5 (5) 3 | with audio podcast