Animals

08/11/2014 - 16:39

The Jurassic and Cretaceous periods were the golden age of dinosaurs, during which the prehistoric giants roamed the Earth for nearly 135 million years. Paleontologists have unearthed numerous fossils from these periods, suggesting that dinosaurs were abundant throughout the world. But where and when dinosaurs first came into existence has been difficult to ascertain.

 

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.