The early bird catches the sperm

Getting up later in the morning might gain you more sleep, but it could mean you end up fathering fewer offspring—at least if you are a songbird called the great tit. Ecologists from the United States and Germany have discovered ...

Snooping on neighbours gives animals the upper paw

(Phys.org) —Animals that have developed the ability to eavesdrop on their neighbours may have the edge when it comes to finding food and expanding their habitat, a new study by researchers at The University of Western Australia ...

Size matters for creatures of cold polar waters

Scientists at the Universities of Liverpool, Plymouth, and Radboud, Netherlands, have challenged the view that giant animals are found in polar seas because of a superabundance of oxygen in cold water.

And the beat goes on: The reliable heartbeat of hibernators

At the current temperatures, all hibernators have probably emerged from their winter hibernation and are enjoying the warm weather. However, this is quite different during the cold season. Many small mammals such as marmots, ...

Disappearing nannies force parents to accept their duties

(Phys.org) —Large helpers (nannies) in a cichlid fish allow the dominant male and female to reduce their personal contribution to their offspring and territory, according to new research published today in Functional Ecology.

page 2 from 4