Nature

Is walking down stairs impossible for some animals? © Getty Images

Is walking down stairs impossible for some animals?

What's the most sexual animal? © Getty Images

What’s the most sexual animal?

Why do dragonflies have four wings instead of two? © Getty Images

Why do dragonflies have four wings instead of two?

Where do birds go when they die? © Getty Images

Where do birds go when they die?

Do animals get seasick? © iStock

Do animals get seasick?

As we share more DNA with chimps, why are dogs better companions? © iStock

As we share more DNA with chimps, why are dogs better companions?

Why do mimosa plants close when touched? © Getty Images

Why do mimosa plants close when touched?

Why do red and grey squirrels not interbreed? © Getty Images

Why do red and grey squirrels not interbreed?

Why do pigeons bob their heads? © iStock

Why do pigeons bob their heads?

Why do banana skins get thinner as the fruit ripens? © Getty Images

Why do banana skins get thinner as the fruit ripens?

Are there homosexual animals? © Getty Images

Are there homosexual animals?

If humans died out, would we evolve again from apes? © Getty Images

If humans died out, would we evolve again from apes?

Why are flies attracted to bad smells? © Getty Images

Why are flies attracted to bad smells?

Which organism developed eyes first? © Getty Images

Which organism developed eyes first?

Which animals have the longest pregnancies? © Getty Images

Which animal has the longest pregnancy?