How do birds sleep? How do birds hang onto trees when theyre asleep? Why dont they fall off? That's easy. It's because of the hallux toe. Hallux toe? Is that the toe on some birds that points backwards instead of forwards? That's the one. We already...
How Parenting Affects the Brain 教育孩子影响大脑 If youre one of those parents that constantly worries about their kids, youre not alone. In fact, a study out of Yale University suggested that having a child may actually affect your brain fun...
