Dolphins
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![Dolphin walking on water](https://cdn.mos.cms.futurecdn.net/b5SqZBF9ox99BhjpMhWrmU-320-80.jpg)
These Dolphins Taught Each Other to Moonwalk — But It Was Just a Fad
By Laura Geggel published
![Orca rescue](https://cdn.mos.cms.futurecdn.net/97oWho4JwUFjrhBaFdihye-320-80.jpg)
In Photos: Response Teams Try To Save Starving Killer Whale
By Kimberly Hickok published
Teams in Washington and Canada are working together to save Scarlet, a starving 3-year-old killer whale.
![Scarlet, or J50 swimming.](https://cdn.mos.cms.futurecdn.net/wPu554wtJSBCz8S7UYVZe5-320-80.jpg)
Scientists Are Trying Desperately to Save a Starving Orca. Will Their Efforts Pay Off?
By Kimberly Hickok published
Will this starving young killer whale respond to researchers' attempts to save her?
![Tahlequah orca whale](https://cdn.mos.cms.futurecdn.net/4wmskaj4eFRVoaMMuccBjE-320-80.jpeg)
Orca Mother, Who Pushed Her Dead Calf for 1,000 Miles and 17 Days, Moves On
By Laura Geggel published
![Aerial view of J50, the starving orca whale.](https://cdn.mos.cms.futurecdn.net/sdkABeSmsmLZSm6ait9ycK-320-80.jpg)
3-Year-Old Killer Whale Is Starving, and Biologists Don't Know Why
By Kimberly Hickok published
Can an unconventional solution help save this orca's life?
![Baby orca pushed by its mom.](https://cdn.mos.cms.futurecdn.net/Dt2hjH2UjPRCcRnBBnSMaQ-320-80.jpg)
Grief-Stricken Orca Mom Pushes Dead Newborn Around in Puget Sound
By Kimberly Hickok published
These charismatic marine predators are fighting for survival as their food source disappears.
![null](https://cdn.mos.cms.futurecdn.net/JqqHPCAJeCMSwkXmGiXU49-320-80.jpeg)
Killer Impression: Orca Mimics 'Hello' and 'Bye-Bye'
By Mindy Weisberger published
Say what? Orcas can mimic human speech — a few words of it, anyway.
![The resdiscovered orca geoglyph lies on a desert hillside in the remote Palpa region of southern Peru.](https://cdn.mos.cms.futurecdn.net/ZXiPKFYsEmznfZXxdpBzC-320-80.jpg)
2,000-Year-Old Killer Whale Geoglyph Found in Peru Desert
By Tom Metcalfe published
The 230-foot-long orca is etched into a desert hillside.
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