Sexual reproduction allows for a recombination of genetic material that can lead to variations among organisms. And while having separate male and female components is typical, in biology there ...

The typical rate of extinction differs for different groups of organisms. Mammals, for instance, have an average species "lifespan" from origination to extinction of about 1 million years ...

The tentacles are the man-of-war's second organism. These long, thin tendrils can extend 165 feet in length below the surface, although 30 feet is more the average. They are covered in venom ...