Researchers have learned that horses can differentiate a human's mood by their facial expressions. CBS News Correspondent Sam Litzinger has more.

Researchers have discovered reasons why your cat may be so temperamental. CBS News Correspondent Sam Litzinger has more.

Not all humans sound the same -- we all have different accents and dialects. Wolves are the same. Their howls differentiate their species and subspecies. CBS News Correspondent Sam Litzinger has more.

How do animals know to be afraid of their predators? CBS News Correspondent Sam Litzinger has more.

Although they are a technological advancement -- drones have become a major problem -- causing accidents, invading privacy, and they can just be annoying. Now researchers are training birds to intercept the drones -- as a way to protect their owners. CBS News Correspondent Sam Litzinger has more.

Although the California drought is effecting most the population -- the Monarch Butterfly is benefitting from it. CBS News Correspondent Sam Litzinger has more.

Contrary to popular belief -- an octopus is a very social sea creature. CBS News Correspondent Sam Litzinger has more.

The elephant and the naked mole rat -- two completely different sizes -yet- both are resistant to cancer. CBS News Correspondent Sam Litzinger has the story.

Scientists are trying to determine the reason behind the up-tick in animal deaths. CBS News Correspondent Sam Litzinger has the story.

The area surrounding Chernobyl has been abandoned since the nuclear power plant explosion in 1986 -- however, for the animals, it has become a nature preserve. CBS News Correspondent Sam Litzinger has the story.