What Is Cold-blooded Animal?
What Is Cold-blooded Animal? Many animals, such as fish, frogs, snakes and lizards, are often called “cold-blooded,” as opposed to...
Read More
How Did the Bloodhound Get Its Name?
How Did the Bloodhound Get Its Name? Despite the bloodhound’s name, it is not vicious and has no special fondness for blood. This big saggy-skinned dog is...
Read More
Do Hippos Sweat Blood?
Sometimes the hippo’s thick hide becomes covered with pinkish dew. He looks to be sweating blood, but actually, this is not so at all. The big fellow spends about half...
Read More
Why Is Blood Red?
Why Is Blood Red? Blood gets its red color from a substance called “hemoglobin.” Hemoglobin has a molecule called a “heme” which has the metal...
Read More
What Causes Black and Blue Marks?
What Causes Black and Blue Marks? If you fall or receive a sharp blow, you may get a painful bump that soon turns black and blue. When you bruise yourself, tiny blood...
Read More