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The eyes are remarkable organs that enable us to perceive the world around us. While humans and sheep share many similarities in their visual systems, there are also fascinating differences between the eyes of these two species. In this article, ...

If you've ever had to help a toddler who's started gasping for breath, you know the panic that sets in. Choking is one of the most common causes of death in children under 4 years old. In ...

Brains and intellect are two very different things, even though they're both important parts of what it means to be human. Yes, we're talking about your head here — but not in a literal sense. Brains are ...