Marine mammal Marine mammal Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as seals, whales, manatees, sea otters and polar bears. They do not represent a distinct taxon or systematic grouping, but rather have a polyphyletic relation due to convergent evolution, as in they do not have an immediate common ancestor. They are also unified by their reliance on the marine environment for feeding. Marine mammal adaptation to an aquatic lifestyle varies considerably between species. Both cetaceans and sirenians are fully aquatic and therefore are obligate water dwellers. Seals
Brain Droppings Brain Droppings Brain Droppings is a 1997 book by comedian George Carlin. This was Carlin's "first real book" and contains much of Carlin's stand-up comedy material. According to the cover, the book contains "jokes, notions, doubts, opinions, questions, thoughts, beliefs, assertions, assumptions, and disturbing references" and "comedy, nonsense, satire, mockery, merriment, sarcasm, ridicule, silliness, bluster, and toxic alienation". For longtime Carlin fans, the book also contains complete versions of two of his most famous monologues, "A Place for My Stuff" and "Baseball and Football". The hardcover edition was on the "New York Times" Bestseller List for 18 straight weeks. The