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2:16
Cassini plunges into Saturn, marking the end of its 13-year mission.
5:12
Learn more about the evolution of our furry companions.
3:59
It's time to learn the truth once and for all.
2:51
Why it’s so hard to tell what your cat is thinking.
2:19
Tips on how to train your cat.
15:46
Watch an uncut interview with the late astronaut, conducted at NASA in 1984.
4:25
NASA is sending a robotic rover called "Curiosity" to find out if there is life on Mars.
5:10
Comets carrying chemicals necessary for life may have come to Earth billions of years ago.
4:23
Chimps have their own rich world of communication.
2:36
Animal and human forms of communication may be much closer than we previously thought.
2:56
Can scientists stomach hours of spider sex in order to understand their language?
4:25
Meet Dr. Talithia Williams, host of NOVA Wonders.
