Blood is often associated with the color red, but in the animal kingdom, it comes in a surprising range of hues. From the ...

When our blood mixes with oxygen, it turns red, but horseshoe crab blood turns blue, which is key to its value in the medical field. “The copper has these special coagulating properties ...

Have you ever seen an animal with Blue Blood? While this may sound unusual, animals with blue blood do exist. While most vertebrates, including humans, have red blood cells due to hemoglobin ...

Horseshoe crabs, with their alien appearance and mysterious blue blood, are not the crabs they’re named for, nor are they relics to be ignored. These magnificent survivors date back hundreds of ...

These ancient creatures, often referred to as 'living fossils,' offer a rare glimpse into Earth’s evolutionary past ...

Imagine a creature whose blood is so valuable that it’s often referred to as “liquid gold.” No, it’s not a mythical beast from a fantasy novel; it’s the horseshoe crab. This ancient crab has blue ...