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Seeking to consolidate her grip on the Chinese throne, Empress Wu Zetian embarked on an audacious project: expanding the imperial palace
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On the 50th anniversary of the march from Selma to Montgomery, the first African American president paid tribute to an event in civil rights history
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Presidential candidate Barack Obama's scheduled speech to the Democratic National Convention fell on the anniversary of Martin Luther King Jr.'s speech
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In Yellowstone, elk calves are left unprotected by their herd and are the easiest prey for wolves to catch. Luckily, the newborns have no scent
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The USS Tang was a state-of-the-art Balao class submarine, certified by the Navy to dive up to 400 feet
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The Han dynasty tombs were packed with some of the empire's most valuable relics. To guard against theft, colossal stones, each weighing six tons
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With its abundant greenery, you'd have no idea there was once an ancient city located just outside of Rome
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When a WWII Australian spy operation in occupied Borneo is uncovered, its operatives go into hiding. Rescuing them involves sneaking a sub into enemy water
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A male babirusa's canines are an evolutionary mystery: They never stop growing
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The assassin bug's deadly proboscis is both sword and siphon. It uses its sharp nose to pierce and inject toxins into its victims
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While a great white shark's 300 serrated teeth are an amazing hunting adaptation, what's even more amazing is their replaceability
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Hercules beetles, as their name suggests, are immensely strong for their size
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After a hornet queen lays hundreds of eggs, her workers set about feeding the larvae chewed-up prey. With tiny waists, the workers can't digest solid food
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On February 7, 1943, the USS Wahoo sailed proudly into Pearl Harbor, a broom tied to her periscope. It was a wink to an old Naval tradition
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The new skipper of the Wahoo was the formidable Dudley Morton--a Kentucky Baptist with an aggressive philosophy on how submarine warfare should be waged
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The hagfish is a slime-emitting ocean-dweller that's remained unchanged for 300 million years--and it shows. It has a skull (but no spine)
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A distracting radio issue, a hazy night, and a new pilot unsure of his instruments. According to investigators, these were some of the possible factors
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The Concorde was once the peak of cutting-edge aircraft design and a status symbol for the world's elite travelers
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Thanks to a local anesthetic in their spit, vampire bats are able to drink blood from their prey without being detected
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The echidna, or spiny anteater, is a marvel of defensive self-preservation, from its impenetrable spikes to its ability to breathe through bushfires
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