The amazing frog Hylomantis lemur

Frogs of this species have encountered chytridiomycosis. That's an infectious disease of amphibians caused by microscopic freshwater fungi.

Wehrmacht soldiers dismantling Polish government insignia in Gdynia soon after the invasion of Poland in September 1939.

Cloud chamber (Wilson chamber).

That’s a unique device capable of making normally invisible particles of radioactive radiation visible.

The kookaburra is one of Australia's national symbols, along with the platypus and the koala.

🇬🇧 A barrage balloon over Tower Bridge in London during the Battle of Britain, WWII, c. 1940

90s pc never obsolete

The sugar glider is a small animal resembling a squirrel in body shape. Its body length is 15-21 cm, its tail 16.5-21 cm. Its body weight is 95-170 grams.

Marienburg, Prussia, 1890s

🚁 This is how forest fires are put out.

Although the lesser panda is a carnivore, it feeds mainly on plant foods.

Public execution of Polish civilians randomly caught in a street roundup in German-occupied Bydgoszcz, September 1939

We continue to find out 'essential facts for life' with the help of Mr Beast. This time he checked how many balloons it takes to lift a small building.

Many people think that tulips are native to Holland🌷

But in fact, tulips are Turkey's oldest treasure. The Ottoman Empire created huge gardens planted with tulips.

City Hall Post Office, New York State, 1905. Designed by Alfred Mullett, completed in 1880 and demolished in 1939.

Magnapinna is a genus of deep-sea squid in the order Oegopsida. Found in the Atlantic, Indian (south of Mauritius) and Pacific Oceans at depths of 1940 m, 2195 m, 2576 m, etc.

King Ferdinand II, who ruled as Holy Roman Emperor, King of Bohemia, Hungary, and Croatia from 1619 until his death in 1637.

🖍 Very unusual tattoo that glows under ultraviolet light

When cherished dreams come true.

U-156 (foreground) and U-507 pick up Laconia survivors on 15 September, 1942. Three days earlier on 12 September, the German submarine U-156 sank RMS Laconia, a British transport carrying 1,793 Italian prisoners-of-war among its passengers, in the Atlantic Ocean off West Africa. Ultimately, 1,420 of the Italians died as a result of the German attack. Italy was then Germany's ally.