Run fast (bursts of speed to outpace an unaware animal), and run for long amounts of time (to wear down a prey animal). To try and answer this question, my team reconstructed the complete skeleton ...

For example, Hamilton would predict that a person should be more willing to run into a burning building ... Genetic structure clearly influences the evolution of animal sociality.

All animal evolution for the last half billion years has come from tinkering with these Cambrian body plans. Then, between about 570 and 530 million years ago, another burst of diversification ...

C. D. Darlington of M. J. D. White's “Animal Cytology and Evolution” 1. In our opinion, it would be unfortunate if the many criticisms given under the authority of Darlington's name were ...