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Do dogs feel jealousy?
Most scientists agree that non-human animals feel the "basic" emotions - fear, anger, happiness, surprise - or at least the animal-equivalents. Behavioral and neurological studies support that animals have, to some degree, similar emotional experiences as we do.
When it comes to more complex emotions, such as guilt, embarrassment, and sympathy, we have much less empirical support. These emotional states may require some form of theory of mind or a level of self-consciousness that we aren't sure that animals have.
The new dog-jealousy study has gotten a lot of hype and press, and now everyone thinks dogs can feel jealous. Other studies have shown that anthropomorphism may play a huge role in how we interpret the "guilty look" in dogs. I think it's a bit strange that the human researchers find the evidence more compelling than the animal cognition experts and it would have been nice if they had included a dog-cog expert on their team.
Dog owners petted a stuffed dog (or read a book or paid attention to a jack o'lantern), and the behavior of their pet dog was measured. Dogs were more likely to bark or push on the owner or investigate the object when it was a stuffed dog. I think what we can all agree on - dogs attempt to get their owner's attention when it is directed elsewhere - attention is of course a resource that is important to many pets. You can read the study here - yay open access!
Why isn't composting the norm?
I am lucky to live somewhere where we can put all of our food scraps in a compost bin and not into landfill. I'm very excited to see that NYC is following suit! I think some psychological science can be added to get everyone on board!
Camouflage is an amazing thing. This satanic leaf gecko has perfectly evolved to match its habitat - even when that habitat varies.
But what about when that habitat has completely changed? Scientists examine the outlook of the snowshoe hare, an animal that typically changes color as the weather changes to match the presence of snow in the winter...but what happens when there's no snow?