Identifying laboratory rodents as a group may be sufficient if all the animals are to receive the same treatment and/or manipulation and if individual variations in response are not to be recorded ...

For more than a decade many researchers have compared the DNA of giraffes from all parts of Africa. These studies have revealed that there are four distinct giraffe species: the southern ( Giraffa ...

The fossilized skull of the largest rodent ever recorded has been described ... years before being studied and identified as a new species, Josephoartigasia monesi. It was recognized as a new ...

Around 45 million years ago, a 4.6 feet-tall (1.40 meters) flightless bird called Diatryma roamed the Geiseltal region in southern Saxony-Anhalt. An international team of researchers report on the ...