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This is Scientific Americans' 60-second science.

I'm Jason Goldman.

Crows react really strongly to one of their own being dead,

including gathering around their deceased comrades.

Some experts believe that these so-called crow funerals are efforts to learn, perhaps so they

can avoid the same fate.

University of Washington researcher Kaylee Swift is one of those crow experts.

When a film crew came to her campus to record these behaviors, Swift and her colleagues

placed a dead crow on the grass, and they waited

for the crows to show up and investigate, just as they had done hundreds of previous times.

The first bird, you know, came in like they do, and I'm sort of bracing myself for what,

what has become, you know, what I'm expecting to be the typical response,

which is that it alights in a tree and it alarm calls and then other birds come in.

But instead what it does is it flies down to the ground and it kind of walks up to the crow.

But then it goes into really typical crow pre-copulatory posturing, where basically they kind of drop

their wings down and they stick their tails up and they strut.

...