  Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals,[1] making up about 25% to 35% of the whole-body protein content.I â¦ t is naturally found exclusively in metazoa, including sponges. [2] In muscle tissue it serves as a major component of endomysium. Collagen is the main protein of connective tissue in animals and the most abundant protein in mammals,[1] making up about 25% to 35% of the whole-body protein content.
The Southern Cassowary - The Most Dangerous Bird on Earth. Sunday, 1 September 2013. Ask a ten year old what the largest bird in the world is and the chances are you will get the right answer â the ostrich. Asked about the second largest and the odds are still very good that they will be able to name the Emu.
Key facts on Locusts. Locusts are the oldest migratory pest in the world. They differ from ordinary grasshoppers in their ability to change behaviour (gregarize) and form swarms that can migrate over large distances. The most devastating of all locust species is the Desert Locust (Schistocerca gregaria). During plagues, it can easily affect 20 percent of the Earth's land, more than 65 of the world's poorest countries, and potentially damage the livelihood of one tenth of the world's population.