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A dolphin trapped in a fishing net

Study raises concern about methods used to stop dolphins being caught in nets

Dolphins and porpoises continue to die in huge numbers in fishing gear but even some...
Majestic fin whales

Icelandic whalers kill first fin whales in four years

As feared, whale hunters in Iceland have slaughtered at least two fin whales, the first...

Majority of Icelandic people think whaling harms their country’s reputation

With the very real prospect of Iceland's only fin whale hunter, Kristján Loftsson sending boats...
Humpback whale underwater

Humpback whale rescued from shark net in Australia

A humpback whale and her calf have managed to escape after becoming entangled in a...

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.

Known as the “postreproductive lifespan” (PRLS), this condition is found in very few species apart from humans. Evidence has already been found in orcas and short-finned pilot whales, now it has also been identified in false killer whales. All three species share certain similar characteristics in their life history, including strong bonds between mothers and their offspring, lasting through adulthood, which enables them to pass on skills and knowledge to the next generation.

Full report:
Evidence for a postreproductive phase in female false killer whales Pseudorca crassidens
Theoni Photopoulou, Ines M. Ferreira, Peter B. Best, Toshio Kasuya and Helene Marsh
Frontiers in Zoology – Published: 21 June 2017

About George Berry

George is a member of WDC's Communications team and website coordinator.