Search results
Results from the WOW.Com Content Network
However, viruses are still poorly understood and may have arisen before "life" itself, or may be a more recent phenomenon. Major extinctions in terrestrial vertebrates and large amphibians. Earliest examples of armoured dinosaurs. 195 Ma First pterosaurs with specialized feeding (Dorygnathus). First sauropod dinosaurs.
Walking with Monsters – Life Before Dinosaurs, marketed as Before the Dinosaurs – Walking with Monsters in North America, is a 2005 three-part nature documentary television miniseries created by Impossible Pictures and produced by the BBC Studios Science Unit, [2] the Discovery Channel, ProSieben and France 3. [3]
However, since the sharks’ presence in the fossil record has mostly consisted of isolated teeth, scientists have been left to speculate on what the rest of this ancient predator looked like ...
Unlike other fish, shark gill slits are not covered, but lie in a row behind the head. A modified slit called a spiracle lies just behind the eye, which assists the shark with taking in water during respiration and plays a major role in bottom–dwelling sharks. Spiracles are reduced or missing in active pelagic sharks. [28]
Get excited for the 35th official Shark Week, from July 23 to July 29, with these shark facts.
Bait, a 2012 Australian-Singaporean film, perhaps sets up the most unique of premises in a movie involving people-hungry sharks. The movie follows a bunch of grocery store workers who are forced ...
Loosely based on the 1984 John Brosnan novel of the same name, it follows characters Doc Smith and Ann Thrush in their efforts to thwart Dr. Jane Tiptree's plan to exterminate the human race with a lethal virus and replace them with her own genetically created dinosaurs. Six years before the novel Jurassic Park by Michael Crichton was released ...
Given that all extant lamniform sharks give birth to live young, this is believed to have been true of megalodon also. [81] Infant megalodons were around 3.5 meters (11 ft) at their smallest, [ 35 ] : 61 and the pups were vulnerable to predation by other shark species, such as the great hammerhead shark ( Sphyrna mokarran ) and the snaggletooth ...