Chris Chapman Dr. Karen Keane-Hines Anatomy &Physiology II MANATEE Long ago manatees were mistaken for mermaids or sirens-luring sailors to their deaths on rocky shores. So the order of these marine mammals has been named, Sirenia. There are five species: Amazonian, West African, and West Indian with two sub-species the Florida and Antillian Manatee. All have front flippers and a solid, flat, paddle shaped tail. Another related species, the Dugong, has a fluked tail.
The Oceanic White-Tipped Shark is a pelagic shark which means it lives close to the surface and rarely goes to the ocean floor. It is an aggressive slow moving fish that usually will find a carcass of a whale or other large marine animal and dominate the feeding frenzy. It gets its Name white-tipped shark because every fin on the shark has a white tip except the anal fin which has a black tip. They inhabit most of the Salt water of the world because they can live in cold or warm water. Excluding the occasional feeding frenzy, white tips also eat a diet that consists mostly of cephalopods.
One important discovery Shubin made is Tiktaalik, which is a 375 million year old fossil. Tiktaalik is a fish that has scales and gills, but its head is flattened like that of a crocodile. Like most fish, Tiktaalik’s fins have ray bones enabling them to paddle in water, but the most amazing thing about it is that it has interior bones which allows it to lift off of the sea floor, something unordinary for a typical fish. It would use its limbs for support like a tetrapod. Shubin shows how fin structures of fish like Tiktaalik mark the beginning of the evolution into the mammalian paw and opposable thumb structures in the hands of today’s primates.
So you may be asking yourself, how does this apply to the bull shark? The answer is that the bull shark over time has adapted its body to be able to control the amount of salt that its body gets rid of allowing it to live in waters of different salinities. Marine organisms have a high level of salt in their body so that the sea doesn’t dehydrate them because it is a hypertonic solution. Due to the fact that sharks can increase or decrease the content of salt in their blood allows them not to take in too much water when they migrate into freshwaters. Sharks are known to be fierce predators of the sea, and with the capability to venture into freshwater it makes their hunting grounds very vast.
The buoyancy allows the cuttlefish to hover over the floor of the oceans. The siphuncle is highly modified, running on the ventral side of the shell. Although the cuttlebone is unique to the cuttlefish, it does have a minor set back. Between the depth of 200 and 600 meters the cuttlebone can implode. Because of this factor cuttlefish have adapted to the seafloor in shallow marine waters as their habitat.
The orcas’ brains have an “extra” part that makes them considerable more emotional. As cited on Tim Zimmermann’s article, the marine biologist Ken Balcomb stresses that: One of the most important things to know about killer whales like Tilikum is that, in the wild they live in complex and highly social family pods of 20 to 50 animals. The pods are organized around the females. The matriarch is usually the oldest female (some live to 80 or more), who has a wealth of experience and knowledge about where food can be found. Within the pod, mothers are at the center of smaller family groups.
Olive Ridleys get their name from the coloring of their heart-shaped shell, which starts out gray but becomes olive green once the turtles are adult. Hatchlings are dark gray with a pale yolk scar, but appear all black when wet. Carapace length ranges from 37 to 50 mm. Olive Ridleys are omnivorous, meaning that they consume a varied diet from both plant and animal sources. Distribution Although Olive Ridleys spend time in the open ocean, they also forage in coastal waters and estuaries.Olive Ridley turtles are found only in warmer waters, including the southern Atlantic, Pacific and Indian oceans.
Most jelly fish are dangerous as they sting other creatures, when touched by one of their tentacles. Clown fish are immune to stings thus why Marlin wasn’t affected. 14. Compare Dory, Bruce and Nemo, which is the best adapted for speed and why? Bruce is best adapted for speed, as he is a shark and needs to be fast to catch and hunt down his prey.
Some manta rays live in a particular location while others travel from places to places. Manta rays are filter feeders. They consume a large quantity of zooplankton by filter seawater through their mouths while swimming. And usually many manta rays swim in lines with their mouths open to filter more zooplankton. Manta rays are huge in size so only sharks and killer whales can harm them and eat them.
The wall of a jellyfish body is very fragile. Their bodies are much different then that of most animals. They have no brain, no respiratory system, and no circulatory system. The average length of a jellyfish tentacle is one to ten meters long. The tentacles of a jellyfish in some cases can grow to a massive length of 100 feet!