They're back: the same spinners, only now flying.

A security guard risks his life to save calm zoo visitors from a hippopotamus unaware of the danger.

Children from the Łódź Ghetto rounded up for deportation to the Chełmno death camp, September 1942

A 100-year-old drawing device, the camera lucida.

It was used by artists to check perspective and maximise likeness.

The royal bird of paradise (lat. Cicinnurus regius) is one of the most colorful and memorable birds in its family.

Syrian camel drivers, 1895. Photochrome

In anger, the cloaked lizard begins to make terrible hissing noises and, in addition, severely beats the offender with its tail.

Dmitry Donskoy in the Battle of Kulikovo, 8 September 1380. This battle was fought between the Mongols and Grand Prince Dimitry Of Moscow and ended in a Russian victory. Although the victory did not end Mongol domination over Russia, it is traditionally regarded as the turning point at which Mongol influence began to wane and Moscow's power began to rise.

🔥 Sun Tzu, "The Art of War"

The clever crow got rid of the rival vultures with just one pinch, strangling each other.

Rhinopithecus is a genus of monkeys in the monkey family. In some classifications, the genus is combined with the genus Pygathrix. Rhinopithecus inhabits Asia; its range covers southern China (Tibet, Sichuan, Yunnan and Guizhou), as well as northern Vietnam and Myanmar.

Archeologists examine a Mayan stele in Honduras, c. 1900

An Iranian blogger has been sentenced to 12 years in prison for a dot tweet that garnered more likes than the Ayatollah's post

Hossein Shanbehzadeh was sentenced to 12 years in prison for responding to a post by Ayatollah Khamenei with a dot alone and garnering more likes, leading to his arrest. He was sentenced to 5 years "for propaganda in favour of Israel", 4 years "for insulting Islamic shrines", 2 years for "spreading false information" and another 1 year for "anti-state propaganda".

The blogger's account has been deactivated and his lawyer intends to appeal the sentence.

Have you seen seals kissing?

Crowds cheer American aviator Charles Lindbergh in his plane "The Spirit of St. Louis", 1927.

Kiribati is the only country that is in all 4 hemispheres!

Sometimes turtles confuse the land and the back of a hippopotamus.