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Watch: Grouper Slurps Down A Shark, Not A Typical Meal

"The Atlantic goliath grouper (Epinephelus itajara) isn’t the meanest or fastest fish on the reef. It has neither venomous barbs nor impressive fangs. But as its name suggests, the goliath grouper does do at least one thing of note: It gets big. Darn big. And as the saying goes, big fish eat little fish." Whoa. Should we stay tuned for Grouper Week on Discovery?

Wow! #Spectacularly #Amazing!! Slow Life. "Slow" marine animals show their secret life under high magnification. Corals and sponges are very mobile creatures.

"transformer" owl - this little guy is not one to mess with at any size! Ignore the terrible music

20 Fragen: Bist du ein Außerirdischer?

the cosmic ice sculptures of the Carina Nebula via Hubblesite. The visible space is big, complex and can be incredibly beautiful. from 9 Incredible Photos of our Universe Nebula

Watch New Meteor Shower Peak in the Sky and Online

A never-before-seen meteor shower may peak this weekend—and the sky show may rival even August’s famed Perseids. May 24, 2014!

TODAY IN HISTORY: Soviet cosmonaut Valentina Tereshkova became the first woman in space. On June 16, 1963, she soared to the heavens with the Vostok 6 mission and orbited the Earth 48 times, spending almost three days in space. Fun fact: In order to join the Cosmonaut Corps, Tereshkova was inducted into the Soviet Air Force, but since the distinction was only honorary, she was the first civilian to fly in space. Two records, one trip. Bonus fun fact: At the age of 77, Tereshkova said that…