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Zookeepers in Dallas are working with international conservation groups to implement a survival plan for penguins. It includes DNA matching to make sure the right penguin couples get together.

Parts of Utah's Great Salt Lake are 10 times saltier than the ocean. But the lake is host to plenty of life, including salt-loving microbes that can turn the lake's water bubblegum pink. Bonnie Baxter, director of the Great Salt Lake, discusses how the bugs might hold the secrets to better sunscreen, hydrogen fuel cells--even life on Mars.

Goodall, who died Oct. 1, became one of the most famous scientists of the 20th century for her work observing chimpanzees in the wild in East Africa. Originally broadcast in 1993 and 1999.

Science writer Henry Fountain says the deadly quake that shook Alaska in 1964 was so loud some thought it was the beginning of World War III. His new book is The Great Quake.

The gun-maker says it will concentrate instead on fulfilling contracts from the military and law enforcement for the semi-automatic weapon that has come for many to be associated with mass shootings.

They're known as 'climate refugees.' But there's not even an international definition for them, let alone recognition or protection.

The Daily Show host grew up biracial in South Africa; his mother was jailed for having a relationship with his father. But she always turned to humor before anger, Noah says — a trait he's inherited.

In the post, since deleted, the woman wrote: "One of the happiest moments in your life was probably when you met me and my friends," she wrote.

The West African country has about 4,000 Ebola survivors. They still face physical and mental issues. And as Ebola has faded from the news, government support has dwindled.

The idea is to inject anti-HIV antibodies that would kill the virus when people get exposed. A new study is promising — although it was conducted on monkeys.