The oarfish, Regalecus glesne, is the longest bony fish in the world. With its snakelike body, sporting a magnificent red fin along its 50-foot length horselike face and blue gills, it accounts for many sea-serpent sightings
The male of one species of insect related to the praying mantis can only reproduce after the female has bitten off his head.
When the pack kills an animal, the alpha pair always eats first. As food supply is often irregular for wolves, they will eat up to 1/5th of their own body weight at a time to make up for days of missed food.
A huge underground river runs underneath the Nile, with six times more water than the river above.
Total fertility rate of the world is 2.59 children born/woman.
Elephants are the largest land-living mammal in the world.
The 236 ft or 72 m high Ada Tree of Australia has a 50 ft or 15.4 m girth and a root system that takes up more than an acre.
A typical Mayfly only lives one day.
Tree roots stabilize soil and prevent erosion.
Secondary roots grow from the primary root.