Blood is a fluid within most animals that delivers oxygen and nutrients to different parts of the body. It can be several different colors depending on the organism.

The diet of an animal does not make a big contribution to the animals myoglobin content; however, the fitness level of the animal may play an important role! For example an "in shape" cow may have a …

The myth is that... that blood is red when it is filled with oxygen and blue when it does not have any oxygen in it. This myth is completely false, and don't believe anyone who tells you otherwise.

Mammals and birds are different from most animals because we create body heat rather than depending on heat from outside our bodies. The word for this is "endothermic," but a lot of people call it being …

A simple answer to your question is that all mammals have hair. It is one of the criteria that scientists use to classify mammals (to separate them from other vertebrate animals such as birds and reptiles).

You can determine genotype from genetic testing (for example taking blood and testing the DNA). The phenotype is the actual trait that you can see directly in an animal, without having to do genetic testing.

Contrary to popular opinion, blood is always red whether it is oxygenated or deoxygenated. Scientific diagrams often express oxygenated blood as red and deoxygenated blood as blue, however this is …

Unfortunately, due to the number of rows of teeth, a single shark bite can result in death by blood loss. Beyond mistaken identity, shark attacks are generally considered to have four causes. The primary …

During embryonic development, most of an animal's cells take on a particular identity--they become blood cells, lung cells, bone cells, or whatever. This is called differentiation, and differentiated cells …

Humans have five senses: sense of smell, touch, sound, taste, sight. Many animals also have these senses, and some animals have additional organs (besides eyes, nose, mouth, etc.) to sense things.