Desert Ecosystem Elena & Yuridia !
Animal adaptions in galapagos islands
Blue Footed Boobies !
Sula Nebouxii
Adaptations
When their prey is in sight , these seabirds utilize the physical adaptations that make them exceptional divers . They fold their long wings back around their streamlined bodies and plunge into the water from as high as 80 feet . Blue-footed boobies can also dive from a sitting position on the water's surface .
General characteristics
It has pointed brown wings . Its head and neck are covered with shaggy brown with and white feathers . Its chest and undersides are white . The blue-footed booby's most distinctive feature is its large webbed bright blue feet !
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Mass Extinctions
Animal name:Dodo bird
Era and period: The Pleistocene Epoch is the time period that began about 2.6 million years ago and lasted until about 11,700 years ago. The most recent Ice Age occurred then. So the Dodos lived through the second half of the Pleistocene, and through the first 98% of the Holocene Epoch, which is what we are in now.
Country and Continent of where they live: The dodo (Raphus cucullatus) is an extinct flightless bird that was endemic to the island of Mauritius, east of Madagascar in the Indian Ocean. The dodo's closest genetic relative was the also-extinct Rodrigues solitaire, the two forming the subfamily Raphinae of the family of pigeons and doves.
There general characteristics: The dodo had a large body, stubby wings, a small, curved tail, short legs, and a large beak. The feathers of the dodo were grey, black and white in colour and the large curved beak of the dodo is one of it's most distinctive features.
Why did it go exctint: It's commonly believed that the dodo went extinct because Dutch sailors ate the beast to extinction after finding that the bird was incredibly easy to catch due to the fact it had no fear of humans, (why it didn't fear the creature many times its size is a mystery for another day).
Video: https://youtu.be/4dGqTpdpqBs
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Mesozoic Era
Name: Icthyosaur
The era and period: Ichthyosaurs had a very wide geographic distribution, and their fossil remains span almost the entire Mesozoic Era (251 million to 65.5 million years ago); but they were most abundant and diverse during the Triassic and Jurassic periods (251 million to 145.5 million years ago).
There country and continent of where it lived: The Indian ichthyosaur, which lived between 152 and 157 million years ago, is the first Jurassic sea monster discovered in the region. ... “Ichthyosaur fossils are well known from the northern continents but are very rare down south,” Brusatte adds.
Whats its general characteristics: Ichthyosaur species varied from one to over sixteen metres in length. Ichthyosaurs resembled both modern fish and dolphins. Their limbs had been fully transformed into flippers, which sometimes contained a very large number of digits and phalanges. At least some species possessed a dorsal fin.
Why did it go exctint: Dolphin-like ichthyosaurs were driven to extinction by climate change and their own slow evolution 90 million years ago. For 150 million years during the age of the dinosaurs, a group of dolphin-like reptiles called ichthyosaurs ruled the ocean – until everything started to go wrong.
Video: https://youtu.be/rezCswEi6cA
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Paleozoic Era
Name: Crinoids
Era and Period: Crinoids are an ancient fossil group that first appeared in the seas of the Middle Cambrian, about 300 million years before dinosaurs. They flourished in the Palaeozoic and Mesozoic, and some survive to the present day.
There country and continent of where it lived: Uintacrinus socialis is a stemless crinoid that lived in the shallow Cretaceous seas that covered much of North America roughly 70 million years ago.
There general Characteristics: Crinoids are echinoderms related to starfish, sea urchins, and brittle stars. Many crinoid traits are like other members of their phylum. Such traits include tube feet, radial symmetry, a water vascular system, and appendages in multiples of five (pentameral).
Why did it go exctint: Crinoids came close to extinction toward the end of the Permian Period, about 252 million years ago. The end of the Permian was marked by the largest extinction event in the history of life. The fossil record shows that nearly all the crinoid species died out at this time.
Video: https://youtu.be/OyketlthVWg
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important fossils
how old is it ? : Known as a nodosaur , this 110 million-year-old , armored plant-eater is the best preserved fossil of its kind ever found .
The Suncor Borealopelta was uncovered on March 21, 2011, at the Millennium Mine, an oil sands mine 30 kilometres (19 mi) north of Fort McMurray, Alberta, that is owned and operated by Suncor Energy .
Fossils are mostly found where sedimentary rocks of the right age – which for dinosaurs is the Mesozoic – are exposed. The best places are river valleys, cliffs and hillsides, and human-made exposures such as quarries and road cuttings. ... Erosion had exposed the fossils at the surface.
A National Geographic video about the nodosaur, the best-preserved fossil of its kind ever discovered. When this dinosaur — a member of a newly discovered species called nodosaur — was alive, it was an enormous four-legged herbivore protected by a spiky, plated armor and weighed in at approximately 3,000 pounds.
Titanosaur fossils have been found on all continents except Antarctica and include some 40 species. The group contains the largest terrestrial animals known, some even approaching the size of modern whales. Like other sauropods, titanosaurs were herbivorous quadrupeds with long tails, long necks, and small heads.
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