Crocodiles can stick out their tongues to catch prey.

The letter 'w' is the only letter in the English alphabet with more than one syllable.

An ostrich's eye is bigger than its brain

In certain conditions, hot water can freeze faster than cold water.

Mercury is the only chemical element on the periodic table that is a liquid at standard room temperature and pressure.

Mars has only one moon, similar to Earth

Iron is the most abundant metal found in the Earth's crust.

Which organ removes urea from the blood?

Soviet cosmonaut Yuri Gagarin became the first human to travel into space on April 12,1962

In trigonometry, what is the value of sin(90°)?

Which chemical element has the atomic number 6?

The distance between two consecutive identical points on a wave, such as from crest to crest, is called the: