Science

False killer whales latest species to show evidence of menopause

New research has discovered a third species of toothed whale in which the female members appear to go through a similar condition to the menopause in women, and then survive for many years long after they are no longer able to reproduce.

Rare white dolphin returns to California

A rare white Risso's dolphin has been sighted in Monterey Bay in California, nearly two years after the dolphin was first seen as a calf.

It is unclear whether the dolphin is a true albino or leucistic, a condition in which there is only partial loss of pigmentation. However, one photo taken of the dolphin suggests it may have pink eyes, which would indicate a true albino.

Why are whales so big?

A new report published by The Royal Society looks at the reasons behind how modern day whales evolved to be so much bigger than their ancestors.

Scientists examined the lengths of over 60 extinct baleen whales, based on measurements of their skulls, and compared these with 13 existing baleen whales.

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