Why do scientists believe we are just now starting to see a higher number of fish outbreaks?

In a relatively small iguana population the allelic frequency is tracked for three generations. webbing is a recessive allele; no webbing is the dominant allele. during one very rainy spring and summer, a flood washes all the iguana without webbed feet out to sea. by the fall, and three generations later, you have the gene pool seen here.

Moving down the ramp from 6 meters to

During convection, less dense fluid rises and denser fluid sinks.