Blood is a remarkable material: it must remain fluid inside blood vessels, yet clot as quickly as possible outside them, to stop bleeding. The chemical cascade that makes this possible is well ...

Blood is a remarkable material: it must remain fluid inside blood vessels, yet clot as quickly as possible outside them, to stop bleeding. The chemical cascade that makes this possible is well ...

Have you ever noticed that spiders curl up when they die? There’s a scientific reason for that. While humans use muscles for both extension and contraction, spiders use muscles to pull legs in but ...

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Insect blood is very different from our own. It lacks hemoglobin and platelets, and uses amoeba-like cells called hemocytes to protect the immune system instead of red blood cells. This insect ...

You probably don’t look like an insect. You don’t have feelers or wings. You keep your skeleton inside your body instead of on the outside. But what about blood? Do insects have blood like yours? I ...

Francesca has an MSci in Biochemistry from the University of Birmingham.View full profile Francesca has an MSci in Biochemistry from the University of Birmingham. Maddy has a degree in biochemistry ...

Add Yahoo as a preferred source to see more of our stories on Google. Spiders tend to curl up when they die, with their limbs pulled inward toward their body. These critters rely on pressurized ...