A general evolutionary trend in large mammals on islands is island dwarfing.
From the en.wikipedia.org
This evolutionary trend explains how they went from ametabolous to hemimetabolous insects.
From the en.wikipedia.org
Feathers made the evolutionary trend clear even to those who couldn't tell a femur from a furcula.
From the newscientist.com
The evolutionary trend among birds have been the reduction of anatomical elements to save weight.
From the en.wikipedia.org
Scientists speculate these factors may play a role in creating the evolutionary trend they observe.
From the sciencedaily.com
They say that could lead to an evolutionary trend towards ever taller men, because height is estimated to be up to 90 per cent genetic.
From the newscientist.com
So, this study identifies an interesting macro-co-evolutionary trend relating closely related groups of plants and their herbivores to an overall defense syndrome.
From the scienceblogs.com
In the mid-Eocene, about 47 million years ago, Epihippus, a genus which continued the evolutionary trend of increasingly efficient grinding teeth, evolved from Orohippus.
From the en.wikipedia.org
The natural adaptation of the throwing spear to a stouter thrusting and charging spear appears to be an inevitable evolutionary trend in the military use of the horse, and a rapid one at that.