Researchers found that chimps beg when they know another person can see them. Jennifer says it's important to be open to the fact that even very different behaviors could mean the same underlying feeling, but also very similar looking behaviors could arise because of a very different underlying process.
A dog on its owner’s grave. A killer whale carrying around its dead calf. A goose that isolates when its mate dies. These behaviors in animals may look like human mourning, but should scientists call them "grief?"
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Jennifer Vonk's research study on pet cats reactions to the death of companion animals can be found here.
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