Biologists have long drawn the animal family tree with a hazy base, unsure which creature first split from the common ...

Scientists have discovered which animal was the first to branch off from our collective common ancestor. For years, debate had raged over whether the first to diverge was the sea sponge or the comb ...

Here’s what you’ll learn when you read this story: Scientists have discovered which animal was the first to branch off from our collective common ancestor. For years, debate had raged over whether the ...