Animals

04/17/2014 - 18:04

A sea slug discards its penis after copulation, the fish, Phallostethus cuulong, has its penis sprouting from its head. However in some insects from Brazilian caves, females are equiped with the penis and vagina in the males,  according to a new study.

 

03/19/2014 - 08:37

A region of the canine brain which is associated with positive expectations such as social rewards responds more strongly to the smell of a human with whom they were familiar than to the smell of humans they didn’t know or to either familiar or unfamiliar dogs. The results were obtained in a study led by researchers in Emory University and Comprehensive Pet Therapy in the USA and published in the journal Behavioural Processes.

 

02/10/2014 - 13:04

In the winter, brown and black bears go into hibernation to conserve energy and keep warm. But things are different for their Arctic relative, the polar bear. Within this high-latitude species, only pregnant females den up for the colder months.

 

01/07/2014 - 11:58

Rodents can tell us a lot about the way species evolve after they move into new areas, according to a new and exceptionally broad study conducted in part by Florida State University biological science Professor Scott J. Steppan.

 

11/06/2013 - 10:57

The painful, potentially deadly stings of bark scorpions are nothing more than a slight nuisance to grasshopper mice, which voraciously kill and consume their prey with ease. When stung, the mice briefly lick their paws and move in again for the kill.

 

10/31/2013 - 11:00

You might think a wagging tail is a wagging tail, but for dogs there is more to it than that. Dogs recognize and respond differently when their fellow canines wag to the right than they do when they wag to the left. The findings reported in the Cell Press journal Current Biology on October 31 show that dogs, like humans, have asymmetrically organized brains, with the left and right sides playing different roles.