Paleontologists in northern Florida have uncovered a massive elephant graveyard from the Miocene Epoch, offering a window into prehistoric life in North America.
hammerhead shark, (family Sphyrnidae), any of 10 shark species belonging to the genera Sphyrna (9 species) and Eusphyrna (1 species), which are characterized by a flattened hammer- or shovel-shaped head, or cephalofoil. Hammerhead sharks, or sphyrnids, are perhaps the most distinctive and unique of all sharks. These cartilaginous fishes vary in size; the small scalloped bonnethead (S. corona) measures only 90 cm (35 inches) long, whereas the great hammerhead (S. mokarran) grows to over 6.1 metres (20 feet) in length. Although they are considered one of the most recently evolved groups of sharks, sphyrnids are known to date back in
savanna, also spelled savannah, vegetation type that grows under hot, seasonally dry climatic conditions and is characterized by an open tree canopy (i.e., scattered trees) above a continuous tall grass understory (the vegetation layer between the forest canopy and the ground). The largest areas of savanna are found in Africa, South America, Australia, India, the Myanmar (Burma)–Thailand region in Asia, and Madagascar.
Savannas arose as rainfall progressively lessened in the edges of the tropics during the Cenozoic Era (66 million years ago to the present) in particular, during the past 25 million years. Grasses, the dominant plants of savannas, appeared only
Baylor professor, team of global scholars make groundbreaking discovery in East Africa baylorlariat.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from baylorlariat.com Daily Mail and Mail on Sunday newspapers.
Although it has not quite reached the stature as the most attended special event at the Calvert Marine Museum on Solomon’s Island, this Saturday’s annual “OtterMania” will certainly be among