In 1857 Luis Pasteur invented fermentation & germ theory. He also invented the process of pasteurization.

Dolphins are aquatic mammals and breathe air into their lungs, as other animals do. Though they live in water, they cannot breathe underwater alike fish as they do not have gills to collect oxygen from water. They breathe through nostrils, called a blowhole, located on the top of their heads.

The platypus is a monotreme--a group where the females produce offspring by laying eggs. The female platypus digs a burrow near a stream and fills it with soft leaves to make the place suitable to lay eggs. Like other mammals, mother platypus produce milk for their young, but have no nipples. Their milk oozes out of mammary gland ducts and collects in grooves on their skin, where the nursing babies lap it up or suck it from tufts of fur.

In nature, most of the animal’s blood is red and contains the iron compound hemoglobin. But Squid and Octopus blood is blue, not red as in most of the animals. This is because squid blood contains a copper-containing compound called hemocyanin.

Like most other ocean fish, cod is a good source of vitamins-B12 and B6, niacin as well as vitamins E, A and D. It is also rich in omega-3 and omega-6 fatty acids. It is a good source of phosphorus, potassium, selenium, iodine and other trace minerals.

Octopuses and Squids have three hearts each: two branchial hearts for gill oxygenation and one systematic heart for body-wide circulation.