Answers to Biology Questions

When you yawn, why do your eyes water? Is it normal?

I found head lice on an elderly lady I was looking after and used a special shampoo that the doctor told me to use. But...

Is left handedness genetic, and are left handed people more artistically creative?

How did the American chicken live for seven years with its head chopped off?

If you had a stem cell transplant, would your DNA change?

Eels manage to move from one bit of water to another. To do this they must go over land. How do they do it?

Programmes always show dinosaurs as being slow. I don't they think they would have been. I think they would have...

I would like to tell my grandfather's country of origin from his DNA. Can I do that?

What are the plant cell walls made from?

What ingredients go into antibiotics, and how do they work?

Some roofs have clean lines across them caused by copper cables that have been lain across them in the past. Why?

Do fish ever get thirsty, and do they sweat?

Is aloe vera grown commercially to harvest, how big are the plants, how is is extracted?

why don't woodpeckers get brain damage when they hammer into a tree?

I read somewhere that if you were to follow the human embryo from conception to birth, it goes through every stage of...

How do whales hunt and eat prey without swallowing gallons of water?

Why do my Dog's Eyes Shine When I Point a Light at Him?

Why are some Animals Born with their Eyes Closed?

What would happen if a bird drank fizzy water?

Why can you smell some gases, but not others?

Is there an evolutionary advantage to tongue-rolling?