Vacation photographs often capture perfect moments in favorite places. Send us your best ones by July 16 for a chance to win up to $1,000 in our Destinations Photo Contest. The top photographs submitted will also be featured in a national publication reaching more than 1 million households.
Paleontologists look at species from the past and can never examine directly whether they can interbreed. So they have to go by what fossils look like, by the creature’s physical form.