Adventure Ausrama Blog

There are some really strange things out there. Some animals are living fossils. They should have died out with the great extinction, but they survived and lived on. The frilled shark looks more like an eel. Its mouth and teeth are enormous in relation to its body. It was caught for the first time in Australia by a fishing trawler. Fishermen had never seen one before. Like the platypus it is a mishmash, having a tail like a shark with head and body like an eel. The animal can live in deep water as well as the shallows. This guy had a bad day. They usually frequent deep water. However, this one was swimming at 700 metres, the maximum fishing depth for trawlers. ✴ Science by Ty Buchanan ✴ http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://adventure--australia.blogspot.com/atom.xml . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vista Computer Solutions Blog   Evolution B

There are new facts about the evolution of fish. An ancient fish fossil has provided preserved muscle tissue. European and Australian scientists have examined a placoderm fossil 380 million years old. Early fish did not have moving jaws with joints. Their mouths were fixed partially open, though they could still move. Jaw structure was presumed to be like sharks, because that was taken to be a living example. The fossil has changed this assumption. It shows a pronounced shoulder structure. From this girdle neck muscles attached to a dermal joint. So the head moved relative to the body but the jaw did not. Sharks do not have joints in the neck - their necks are flexible. Another difference is musculature in the abdomen much like four-limbed vertebrates such as horses. Rather than being a evolutionary step for four-legged animals it was fully developed by placoderms, the first vertebrate with armoured plates and no teeth. http://www.adventure--australia.blogspot.com/ http://w

Can work this picture out? http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

"I could eat a horse." http://vistacomputersolutions.blogspot.com/ . . . . . . . . . . . . . . . . . . Funny Animal Photos

Eons ago ancestors of whales made a major leap forward in evolution of their mouths. Whales living today can filter-feed in large amounts because the lower jaw is flexible in movement. Ancient fossils such as Janjucetus hunderi do not have such a mobile lower jaw. The development of this attribute probably initially evolved to consume large living prey. It began with a wide upper jaw and normal teeth - no comb filters. Erich Fitzgerald from the Museum Victoria in Melbourne has created a family tree showing whale evolution. The way whales feed is unique. It is believed that sucking when feeding still takes place, a left over from the days of the wide upper jaw. A big question is why whales went back into the sea in the first place. http://www.adventure--australia.blogspot.com/ http://www.tysaustralia.blogspot.com/ http://www.feeds.feedburner.com/AdventureAustralia http://www.technorati.com/blogs/ http://adventure--australia.blogspot.com . . . . . . . . .