Explanation

• Name: Cheetah (Acinonyx jubatus)
• Top speed: ~109–120 km/h
• Acceleration: Can go 0 to 100 km/h in just a few seconds
• Habitat: Africa & parts of Iran
• Type: Carnivorous mammal

Additional information:

• The three-toed sloth is widely recognized as the slowest mammal on Earth.

Last verified on 23-06-2026

Explanation

• The common ostrich (Struthio camelus) is the biggest bird in the world.
• It is weighing up to 344 pounds (157 kilograms) and standing 9 feet tall.
• Female ostriches lay the largest eggs of any living bird.
  

• The world’s fastest bird is the peregrine falcon.
• The white bellbird is the world’s loudest bird.

Last verified on 01-07-2026

Explanation

• Europe is the only continent without a desert.
• It has a temperate climate with sufficient rainfall.

Additional information:

• Divided by the Ural Mountains
• Second-smallest continent
• Covers 2% of Earth’s surface
• Area: 10.18 million km²

Last verified on 16-01-2026

Explanation

• Madam Marie Curie was the first woman to win the Nobel Prize.
• First Nobel Prize: Physics (1903)
• Second Nobel Prize: Chemistry (1911)
• She is best known for her pioneering research on radioactivity.
• She discovered the elements Radium and Polonium.

Additional information:

• Wilhelm Conrad Röntgen (Germany) was the first male Nobel Prize winner.
• He received the first Nobel Prize in Physics in 1901.
• He was awarded for the discovery of X-rays (1895).

Verified & Updated

Explanation

• The highest waterfall in the world is Angel Falls.
• Country: Venezuela
• Elevation: 1,283 metres
• Height: 979 metres
• Longest drop: 807 metres
• The waterfall is named after Jimmie Angel, a U.S. aviator who was the first person to fly over the falls.

Last verified on 27-09-2026