When it comes to military transport, the A400M is in a class of its own: it has a 37 ton maximum payload, a fuel capacity of 16,000 gallons and the capacity to fly 5,500 miles without refueling.

If a gelada queen doubts her king's influence, she'll happily play the field. But when she gets caught, it's up to the alpha to fight for what's his.

In the 1560s, Eric XIV of Sweden was determined to change the way naval battles were fought. The result was Mars: a giant of a warship that would rely on artillery and firepower to devastate her rivals.

A giraffe takes a long drink from a local watering hole, with watchful lions in close proximity. The giraffe isn't brave, just desperately thirsty, while the lions aren't lazy, they're just waiting for nightfall.

Ever since the deadly eruption of Mount Tarawera in 1886, New Zealand has invested heavily in a sophisticated warning system - all in an effort to prevent another major tragedy.

All mammals have hair--but is the naked mole rat an exception to the rule? A caretaker at Smithsonian's National Zoo gives us a closer look. #ZooQs

It's November 1943 and a German U-boat has been brutally damaged in a fight with British warships and is limping its way to port. But the sub's onboard batteries are impaired - which means it can't dive to evade enemy ships.

Hyena clans have a very strict social hierarchy. When two 18-month-old hyena brothers join a new clan, alpha male Bongo shows us how he establishes dominance.

Ever wonder why only male peacocks have such extravagant plumage? We ask a caretaker at Smithsonian's National Zoo to explain. #ZooQs

Bombing ground targets from the air is tricky and not always accurate. But a new type of bomb creates an unimaginable level of destruction - and strengthens U.S. attacks in the Pacific.