The Great Hammerhead Shark Sharks are one of the most feared sea animals. They live in oceans across the world but are most common in tropical waters. There are over three hundred fifty species of sharks. They can be broadly categorized into the following four groups: Squalomorphii, Squatinomorphii, Batoidea, and Galeomorphii. The shark family Sphyrnidae that includes the Hammerheads are a part of the Galeomorphic classification.
The great white shark (Carcharodon carcharias), also known as the great white, white pointer, white shark, or white death, is a species of large lamniform shark which can be found in the coastal surface waters of all the major oceans. The great white shark is mainly known for its size, with mature individuals growing up to 6.4 m (21 ft) in length (although reports have been published of great white sharks measuring over 8 m (26 ft),[3] and 3,324 kg (7,328 lb) in weight). [4][5] [6][7] This shark reaches its maturity around 15 years of age and was previously believed to have a life span of over 30 years. The true lifespan of Great white sharks is far longer; now estimated to be as long as 70 years or more, making it one of the longest lived cartilaginous fish currently known. [8] Great white sharks can accelerate to speeds that exceed 56 km/h (35 mph).
The Megalodon also has a famous nickname as “Big Tooth”, and it had definitely earned it. The teeth of this astounding shark could grow up to 9 – 10 foot long! Megalodon’s as sharks, shed their tens of thousands times in a lifetime, so Megalodon teeth have been found all over the world, from ancient to modern times. It was only in the late 17th century that early scientists discovered that the giant teeth were actually shark teeth. Megalodon had the most powerful bite force of any creature that has ever lived!
The commercial weight averages around twenty pounds. They live in depths of 3,500 meters and range from southern Atlantic and Pacific Oceans, Indian Ocean, Southern Oceans and off of most sub-Antarctic islands. Maturity age ranges from ten to twelve years and live a periodic reproduction lifestyle. They are also an opportunistic feeder and largely feed on squid, fish, and prawns. They are eaten by Sperm Whales, Southern Elephant Seals and Colossal Squid.
Young birds have mostly dark heads and tails; their brown wings and bodies are mottled with white in varying amounts. Bald eagle babies attain adult plumage in about five years. Bald eglets leave nest at about twelve weeks old. Bald eagles' favorite food is fish, but they will also eat other birds, ducks, muskrats, and sometimes turtles. They also eat carrion (dead animals).
Like all penguins, African Penguins have a big head, a short, thick neck, a streamlined shape, a short, wedge-shaped tail, and small, flipper-like wings. They have webbed feet which they use for swimming. Penguins are counter shaded; they have a lighter colour on the belly and a darker colour on their back; this coloration helps camouflage them when they are in the water, hiding them from predators. Feathers: Penguins have shiny, waterproof feathers that help keep their skin dry. They have more feathers than most other birds - about 70 feathers per square inch.
There are over four three hundred and seventy species of sharks ranging in size from the smallest shark the pygmy shark which doesn’t normally grow larger than six inches , to the whale shark which can attain sizes of thirty five to forty feet. They are
This environment forces this animal to increase its metabolic rate. 2. Another selective pressure since are their prey. Their prey have grown to be aware of the behavioral swimming patterns of the orca. SO what the killer whale does it dives in the water and become submerged in the water for more than 15 minutes so they can use echolocation and listen where their prey is 3.
For rapid swimming and for diving, they swim similarly to other otters, using up-and-down undulations of the body. Sea otters can reach terrifying speeds of 0.9 mph on the surface and 5.6 mph under water. The feral Alaskan sea otter commonly ransack the depths of 131 feet or more, in search of more prey, while the deadly California sea otter is seldom found in water deeper than 66 feet. Sea otters remain submerged for about 52 to 90 seconds; the longest recorded dive was 4 minutes, 25 seconds. Such extended dives are probably a response to an even more brutish animal or event.
African penguins have black feathers on the back and white feathers on the front of their bodies. The dark color on their back serves as a camouflage, which help them to hide from predators when they are in the water. Usually penguins are birds that cannot fly but African penguins can swim very well and can also fly through the water at a speed of 20 miles an hour thanks to their torpedo shaped body and their short stiff wings. African penguins have a shinny, waterproof feathers, which help them to keep their skin dry. Once a year, penguins molt losing their old feathers and growing new ones.