Elephants benefit from having older siblings, especially sisters

A study of semi-captive Asian elephants in Myanmar has found that calves benefit from having older sisters more than older brothers. The findings are published in the British Ecological Society's Journal of Animal Ecology.

Killer whale DNA reveals distinct ties

Scientists have discovered that populations of Australasian killer whales revolve around matrilineal ties after using DNA to determine their populations across the region.

Race to save Bangladesh hound from extinction

In a rickety hut on the border with Bangladesh and India, two brothers are among the last local breeders of the Sarail hound, a dog on the brink of extinction.

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