Biology Facts & Trivia

Male female chromosomes We are all females in the very first few weeks before birth (the "male" Y chromosome activates later than X.) Submitted by: Anuj - Gorakhpur, India
Smallest fish The world's smallest fish is Paedocypris progenetica (7.9 mm long) found in Submitted by: Antonia - Brazil
Rattlesnakes The female rattlesnake hatches eggs inside her body, and baby snakes emerge active with no shell (called a viviparous birth.) Submitted by: Manu - Agra, India
Tongue Our tongue is the only muscular organ that is not attached to the skeleton, and works independently.
Tallest sequoia Hyperion The tallest known living tree is Hyperion (a Sequoia sempervirens redwood at 115.85 m) in California, USA. Submitted by: SinisterBlade_9
Fungi The fungi are neither plants nor animals but a life form of their own. Submitted by: Manit - Mumbai, India
Coyote Coyotes actually run much faster than Road Runners (70 km/h vs 40 km/h), unlike the
Dragonfly eye lenses A dragonfly's eye has over 30,000 separate lenses (human eye has one.) Submitted by: Robbie Francis D. De Jesus - Philippines
Mistletoe The mistletoe plant is actually a parasite on its host tree. Submitted by: Rodrigo - Los Angeles, United States
Cornea Cornea is the only part of the body which takes oxygen directly from the air. Submitted by: Bohemia - Amritsar, India
Octopus and squid Octopuses and squids (cephalopods) have followed an evolutionary path completely different from other animals. Submitted by: Nicole Chelseame
Height human We are taller in the morning and shorter in the evening (~1-2cm due to spine compression.) Submitted by: Aashita - Mumbai, India
Water in our bodies Women's bodies have less water than men's. (45-60% vs 50-65% respectively.)
Buttocks gluteus maximus The largest muscle in the human body is the buttocks (gluteus maximus.) Submitted by: Cedaneice - Davo City, Philippines
Birds are dinosaurs Birds are actually theropod dinosaurs, thus being the only direct descendents of dinosaurs living today. Submitted by: Vaan - Nepal
Octopus Even a 270 kg (600 lb) Octopus can squeeze through a small coin-size hole. Submitted by: Madhuri - India
Demodex mites in brows Most of us have harmless microscopic mites (Demodex) living in our Submitted by: Nirvisha - Portage, Indiana, United States
The Skin The largest organ of the human body is the skin. Submitted by: Ton - Philippines
Tuatara third eye The lizard Tuatara has a third eye for ultraviolet light (called a parietal eye.) Submitted by: Madhuri - India
Coco de mer The biggest seed in the world is the Coco de mer (weighing up to 18 kg.) Submitted by: Alyssa Michelle de Lemos - Philippines