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AskScience: Got Questions? Get Answers.
Ask a science question, get a science answer.
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What atoms are likely still a part of our bodies from the moment we were conceived and/or born?
#science
How does a whale become dehydrated?

From a Chicago Sun-Times article on the beluga whales heading to the Shedd Aquarium:

"The shipment comes on the heels of a Shedd announcement last week that one of the Marineland belugas — Peekachu, a 23-year-old female — had died. Shedd has not released a cause of death, but staff there said last week that Peekachu had not been consistently eating a full diet since her arrival and that there were concerns she was dehydrated."

How does an animal immersed in water become dehydrated?
#science
Besides humans, if it's learned behavior even or not, are there other species who are adverse to dirty foods?

Pigs are able to eat anything humans can, but they don't mind their food off the dirt ground covered in dirt, grass, sediment, water; basically unexpected crunchy stuff and textural stuff every time.

My dog picks up and drops their biscuit treats on the dirt. Many other animals eat already dead and rotting-on-the-floor animals.

But are there any animals that have been observed to clean off their foods, as in prepping it or at the very least not eating it as is? I don't know if that borderlines on the concept of cooking, which I believe is a human only invention.
#science
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