March 11, 2014
Children develop their own theories of how things work, often in error. Using a 10 page picture book, students as young as 5 to 8 years are capable of grasping the logical basis of evolution.
March 6, 2014
The ancient reptile Dimetrodon exhibited a variety of different tooth shapes, probably due to evolutionary pressure from competitors who fed on similar prey.
March 3, 2014
New research combines the traditional method of studying fossilized pollen with new DNA techniques to look at arctic plants 50,000 years ago.
March 2, 2014
Humans in all societies form and participate in cooperative alliances. Common enemies are not necessary to erase important social boundaries; peaceful cooperation can have the same effect.