Hammerhead sharks are found in ecosystems in temperate and tropical oceans. They live in these types of oceans, because if it was a colder climate they would die from hypothermia and soon the species would become extinct. These sharks like to stay in schools up to 100 in numbers. The reason they stick together is there is more protection in numbers and they can kill bigger prey like big great white sharks. Next Hammerhead sharks gets there name for its flat shaped head and some people think it is useless to the shark.
I think Killer Whales should not be in captivity because, of the injures they can get in their tanks, how they get stressed out and they are better in the wild. The first reason why I think should not be in captivity is of what happens in their tank. The first piece of evidence from the PETA practical “Aquariums and Marine Parks” is that since the tanks for the orcas are usually small for them, they get insane because of the echolocation they use. This makes me think that since their fin sometimes curves, that they would get injured while swimming. In addition, this might make the whale die faster than what they are supposed to live to.
(Blackfish). Killer whales in the wild are aggressive towards each other just as they are to humans, in 1989 an accident involving two whales: Kandu and Corky resulted in Kandu bleeding to death. (Kirby 2) this would have never happened if the whales had the enough space they needed to separate from each other. Contrastingly, killer whales in the wild are more peaceful toward each other and humans. There is only one accident of an orca biting someone in the wild.
In many zoos, animals are forced to live in prison-like cages for a large portion of their lives and are deprived of food. Harsh treatment like this can lead to aggressiveness and psychotic behavior. In the documentary “Blackfish”, which is a film that informs us about what really goes on behind the scenes of Seaworld, a killer whale named Tilikum had been deprived of food along with another whale. Tilikum was a new whale at the park and was training with an experienced whale, and when he would not perform the trick correctly the workers wouldn’t allow them to eat. This caused the other experienced whale to become frustrated with Tilikum and she would rake her teeth across his body, forming many scars.
There are numerous amounts of negative effects resulting from orcas being captured and kept in captivity including: separation from pods, aggression towards other whales, aggression towards humans, a shortened lifespan, lack of exercise, tooth decay, lack of natural enrichment, unnatural reproduction, food deprivation, and the drugging of orcas. Orcas that were captured and brought into captivity were separated from their pods. Pods are the group of orcas that an orca will travel with for the entirety of their lives. The only time that these orcas would leave their pods was to breed (Henn). When orcas began getting captured the wild the pods began to catch on.
Orcas with different backgrounds and dialects are placed together without much thought about how this could affect them. A killer whale named Tilikum was placed in Sealand and he was expected to perform tricks that he had never done, and if he performed them incorrectly all of the whales were withheld food. “This annoyed the others, so they would rake him with their teeth, causing him to bleed” (Lewis). In the wild, when a dominant orca begins showing aggression the other orca has thousands of miles to swim away and flee the scene. However, these animals are in pools where they do not have that option.
To begin lets remember that this are wild animal that can easily kill a human, they are not safe and the people that work with them shouldn’t discuss about individuals passing away, they where the ones who select to work with the creatures. In captivity they will usually have been separated from their families, often in cruel hunts and some when they are very young. Wild whales can swim up to 100 miles a day, hunting and playing. This important because the mental, emotional and physical stress that a captive whale suffers can weaken their immune system and make them prone to disease. Even though captive whales and dolphins are kept in an environment free of predators, pollution and other threats, they die young.
But it made to think more about the fate of these animals. Stewart demonstrated sharks are not mindless killing machines; they act like most big predators, who met with humans in their native environment. And these creatures suffer from humans’ actions more than people suffer from their attacks. Sharks were presented as timid, smart creatures that did not have deliberate plans to attack people. Annual tolls because of sharks are much less than deaths resulted in meetings with crocodiles, tigers or elephants.
It is believed that sea lions are capable to detect humans by smell over a long distance of hundreds of meters away. The sea lions use their sensitive vibrissae to explore objects on land and in the water. They seek out physical touch with other sea lions and form groups and lye with each other on land. Feeding habits: Sea Lions are carnivorous having fish being their favorite food including herring, mackerel, pompano, salmon, capelin and squid. They also feed on crabs and clams.
I could hardly see, even with the highest prescription goggles, there was tons of kelp, and my mouth tasted perpetually of disgusting salty sea water, from the waves getting in my snorkel. Everyone got to go swimming this one day without the wetsuits and it felt like ice, but was fun anyway. There was going to be a sandcastle contest too, but a bison had decided to take a stroll down to the beach, so we all had to go on to the pier, where we saw tons of small sharks, that we were assured were harmless to humans. Caesar’s waterproof camera actually had gotten a dent when a shark bit it, but he was completely fine. When the bison left, we all kept jumping off the pier into the icy water.
Since the PT boats that didn’t fire torpedoes also didn’t have radar, it was difficult for them to find each other. It was especially difficult during the night, when they couldn’t establish visual contact with each other either. This either made them sitting ducks, or hopelessly lost. Destroyers are much larger and much slower than PT boats, but Jack’s crew didn’t spot it in the time it took for them to get out of the way before the Japanese destroyer rammed their boat, killing 2 of his crew. Jack and the 10 other crew he saved swam for 5 hours before they got to Olasana island.