In the Atlantic, it is found from Massachusetts to Brazil, Morocco to Angola. In the Indian Ocean, it is found from South Africa to Kenya, India, and Vietnam to Australia. When their young they usually go far up rivers. Bull sharks they’re everywhere you wouldn't expect them to be. Almost about every shark has the same salt concentration in the blood as the sea water they are swimming in.
They rank number one on the scale of largest predatory fish and can grow to lengths of 23 feet and up to 2,400 pounds. Despite having developed a fearsome reputation, they are less common than other shark species. Not much is known on their population size, but it is believed their numbers are decreasing because of hunting and habitat loss. Great white sharks are typically solitary creatures and only come together to mate. However, they have been seen in groups around carcasses.
Sharks have been swimming the world’s oceans for more than 400 million years - 100 years before the first dinosaurs appeared (Griffin et al., 2008). Sharks fall under the kingdom Animalia, the phylum Chordate and the class chondrichthyes. There are more than 400 known shark species found in the ocean (Musick and Musick, 2011). In the ocean, sharks help maintain the health of ocean ecosystems and help regulate and maintain the balance of the marine environment (Griffin et al., 2008). These sharks have slow growth rates and reach sexual maturity at a relatively late age compared to other marine fish, which leaves their population vulnerable to any outside sources (Musick and Musick, 2011).
Great White sharks eat fish, and as they grow start to eat seals and walrus. Tiger sharks will eat anything and everything, such as dead animals, coal, tires, and clothes. Shark habitats are found in seas and oceans all over the world. Bull sharks have been seen swimming in lakes and rivers. Sharks prefer to live in warm waters near the coast.
Their bodies have learned to adapt to its surroundings in order to survive. Despite their appetite and aggressive reputation bull sharks can be docile in certain environments. In the aqua clear waters of the Bahamas, divers regularly interact with crowds of bull sharks (National Geographic News). In Genesis 1:21 it says, "And God created great whales, and every living creature that moveth, which the waters brought forth abundantly, after their kind, and every winged fowl after his kind: and God saw that [it was] good." God created everything with a specific purpose.
Locomotion The great white shark swim by propelling itself through the water using its tail. The fins are only used for balance. Other sharks, like the whale shark, move their bodies from side to side to propel themselves through the water. If a shark does not swim it will die. It will die because in order to keep oxygen-rich water have to be over their
2-3 miles offshore from Oahu North coast you may see 15-25 sharks at a time. Whale watching in Hawaii is everyone must do. Hundreds of humpback whales come to Hawaii for breeding, calving and nursing their offsprings. Hawaii whale watching is a unique occasion to enjoy the dance and song by one of the biggest mammals on our planet. So, when is whale season in Hawaii?
They vary in sizes. For instance, the largest one (Sepia apama) has mantle which 50cm in length. Other species sizes are between 25cm to 15cm.They feed on other cuttlefish, fish, octopodes, small mollusks, crabs, and shrimps. This report discusses the cuttlefish behavior and its ecology. The internal and external body structure of cuttlefish comprised of various structures that influence their behaviors.
Changes in predator abundance can cause cascading effects to the ecosystem structure, functioning and resilience (Baum & Worm, 2009). Due to the sperm whales’ large body size, large population size, high trophic level and potentially important role in top-down control of cephalopods, the impact of their reduction may be more significant than that of other species. North Pacific sperm whales are significant cephalopods predators. Removal of sperm whales in the North Pacific could lead to dramatic increase in abundance of large squids, subsequently leading to the decline of sardine landings (Croll, Kudela & Tershy, 2006). This could majorly tip the fragile balance of the marine