Tags » ORCA

Killer whale menopause evolved from mother-daughter conflict

From Cosmos Magazine, January 13, 2017 (Image: Shawn McCready via Flickr)

Menopause is an evolutionary anomaly. Only in three species – humans, orcas and short-finned pilot whales – does female reproduction grind to a halt part-way through life. 35 more words


Killer whales explain the mystery of the menopause - Robin McKie. 

Killer whales and humans would seem to have little in common. We inhabit very different ecosystems, after all. Yet the two species share one unexpected biological attribute. 245 more words

Interesting Stories

Are Sharks the Real Ocean Danger?

Photographed by: Dale Cullen

When I was young, my mom warned me: if I went out deep into the ocean, I’d be eaten by a shark. 238 more words

Killer Whale Sub Species

In the wake of hearing about Sea World’s star attraction Tilikum‘s death I got the urge to read up on killer whales again. Tilikum was made famous by the movie Blackfish witches aired on CNN. 129 more words

Social Issues

Feds Weighing Petition For Whale Protection Zone

SEATTLE (AP) – The federal government is weighing a petition calling for a whale protection zone on the west side of Washington’s San Juan Island. 138 more words


A Tale of Two Orcas: Granny(J2) and Tilikum

As part of my on-going series of the non-human Dead:

In January 2017, two notable orcas died – Granny (also known as J2) and Tilikum. Both lived tragic lives in different ways. 462 more words


Friendly Killer Whale

A little underwater illustration for today. Hope you enjoy.

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