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vertebrates

397

The light was dim, so I did not get a very good shot, but its enough to identify him. What is he?

408

If you look closely, you can see that these are bats. How do they keep from bumping into each other when they are all flying together?

412

Every morning, a huge flock of these beautiful birds visits us on their daily journey around the canyon. They have very specially adapted noses. What is so special about them?

417

I photographed this Mule Deer at Bryce Canyon National Park. What is this deer doing that mice and horses can, but pigs, cats, dogs, raccoons, and many other animals can't?

418

The Common Raven is often a scavenger, but its beak is not strong enough to tear through the thick hide of a winter-killed deer. What clever trick does it often use to get at the nutritious flesh inside?

419

On my drive to Kingman today, I passed lots of saguaro cactus, but was not lucky enough to find "saguaro boot". What is that?

426

What is the main difference between a Homing Pigeon and the Pigeons you see hanging around most city parks?

429

In many parts of the world, pigs are used to locate truffles. Dogs can be trained to find truffles, but pigs find them with no training at all. Why are pigs so good at finding them?

432

I took this shot at Rattlesnake Springs in New Mexico. Although it was nearly 10:00 AM on this cloudy day, hundreds of vultures where still roosting in the trees. What were they waiting for?

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