Alligator Brumation in Cold Weather

One of the amazing examples of design in the animal world is how alligators survive weather cold enough to cover their ponds with ice. Warm-blooded animals (endotherms), such as bears and groundhogs, hibernate in cold weather. Cold-blooded animals (ectotherms), such as alligators, become dormant using different metabolic processes. It is called alligator brumation. The Swamp …

You Can’t Sneak Up on a Sleeping Bird

Have you ever tried quietly approaching a bird that appeared to be sleeping? If you have, you were probably unsuccessful, especially if the bird was nesting. Researchers have discovered a design feature called “microsleeps” that may help explain why you can’t sneak up on a sleeping bird. Researchers discovered this feature in chinstrap penguins in …

Extraordinary Claims Require Extraordinary Evidence

It’s known as the Sagan standard and abbreviated ECREE. Carl Sagan, an American scientist, and agnostic, hosted the PBS program Cosmos in the 1980s. He said in the series, “I believe that the extraordinary should be pursued. But extraordinary claims require extraordinary evidence.” He was talking about claims that aliens from space had visited Earth. …