Scientists uncover how enzymes evolved to function at low temperatures
Life has evolved over billions of years, adapting to the changing environment. Similarly, enzymes—proteins that speed up ...
The Florida Times-Union21d
Sex and money, now we're talking. It's about organisms maintaining their species
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 ...
PBS7mon
The Current Mass Extinction
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 ...
National Geographic news3y
Portuguese Man-of-War
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 ...
Nature1y
The Molecular Clock and Estimating Species Divergence
The first type assumes that the rate varies over time and among organisms, but that this variation occurs around an average value. The second type allows the evolutionary rate to "evolve" over ...