A red blood cell takes 20 seconds to circulate around the human body. Submitted by: Jalis - Karachi, Pakistan
The average speed of a sneeze is around 160 km (100 mi) per hour. Submitted by: Dhairya - United Arab Emirates
Dolphins and whales don't drink water.
sciensational.com Submitted by: Mesgana Wondirad - Ethiopia
The ovum (female egg cell) is the largest cell in the human body. Submitted by: Joemari Olea - Philippines
The cause of the popping sound produced by knuckle cracking is largely a mystery. Submitted by: Ankur - Alwar, India
The length of your thumb is about the same as that of your nose. Submitted by: Vashita Dehradun - India
Red blood cells have no nucleus. Submitted by: Adarsh - Patna, India
As much as 70% oxygen in our atmosphere is produced by marine plants and algae.sciensational.com Submitted by: Think - United States
The biomass of all bacteria on Earth is more than all the plants and animals combined. Submitted by: Bookworm - Greenbrier, Tennessee, United States
The synthetic biological cell "Synthia" is the first living organism whose parent is not a living thing but a computer. Submitted by: Hyde - Toronto, Ontario, Canada
Humans share 60% of DNA with a banana. Submitted by: Grant - Philadelphia, Pennsylvania, United States
The femur (thigh bone) is the largest and longest bone in the human body.
The jaw is the strongest muscle in the human body in terms of exerting force.sciensational.com Submitted by: Vineet - India
An adult Mayfly's life is as short as a few minutes, but its body hatches for about a year. Submitted by: Pronoy - Sundargarh, India
The nails on long fingers grow faster than short fingers; and fingernails grow four times faster than toenails. Submitted by: Micael Gabriel - Manila, Philippines
There's about 1.8 m (6 ft) long DNA inside every cell nucleus in our body, and an average adult body contains around 50 trillion (million million) cells. Submitted by: Steve - Boston, Massachusetts, United States
Some migratory birds have a "magnetic compass" in their body (a sense called Magnetoreception) to help them navigate using Earth's magnetic field.
Submitted by: Akki - Dubai, United Arab Emirates
The catfish father keeps the eggs in his mouth until they are ready to be hatched.
sciensational.com Submitted by: Reedell
The tiny Water Bear (Tardigrade) can survive environments extreme enough to kill any other animal - with temperatures as low as -273°C close to Absolute Zero to as high as 151°C. Submitted by: Justin - Vancouver, British Columbia, Canada
Corneas are the only tissues that don't require blood.
Submitted by: Pritesh Jain - Sirohi, Rajasthan, India