Humpback Whales are Not All the Same

Should humpback whales be divided into subspecies based on DNA evidence? Image courtesy of NOAA

Migration patterns in humpback whales are so consistent that the different groups have actually separated into subspecies, according to a new study.

Why was Marius the Giraffe Killed? Copenhagen Zoo’s Decision

Do zoo breeding programs result in problems when too many babies with the same genetic makeup are born? Image by ren

Zoos have breeding programs to maintain numbers of various animals in captivity. What’s the reasoning behind the killing of Marius the giraffe?

Damaged Teeth a Consequence of Captivity for Orcas

Image courtesy: Sara Childers. 
This orca at SeaWorld Florida clearly exhibits open holes in her teeth. The holes are a consequence of a 'modified pulpotomy.'

Conditions of captivity lead to irreversible tooth damage for killer whales – why are Orcas losing their teeth, and enduring painful dental procedures?

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Cats and Their Irresistible Purring


Why do cats purr? For a variety of reasons including self-comfort and requests for food. It’s even possible that the frequency of the vibration has healing properties!

Elephants Understand Pointing Better Than Chimps

Photo credit: Anna Smet

Research shows elephants understand pointing, even with confusing body language, better than chimps and young human children. What’s behind this phenomenon?

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