They have a wide variety of preys, however they prefer to prey on stingrays (Strong, 1990). Their denticles are used to prey on the stingrays in order to facilitate their feeding. These denticles are used more as teeth than fish scales of how sharp and dangerous they are. They also prey on invertebrates, small boney fish, and other sharks as well. They travel throughout the coastal semi ocean (Carlson, 2002).
Instead of teeth, Dunkleosteus possessed two pairs of sharp bony plates which formed a beak-like structure. Dunkleosteus, together with most other placoderms, may have also been among the first vertebrates to internalize egg fertilization, as seen in some modern
Then around 3.5 billion years ago, living cells with DNA were created. They formed for more than three billions years before the Cambrian period which was 540 million years ago. This is when the first creatures such as trilobites came to be. After this was the Silurian period where the first land plants, cooksonia, grew, and the first fish, haikouichthys, swam. After this came the Devonian period which was 416 million years ago.
How much do you really know about the hammerhead shark? Most people assume a shark is a shark, but there are many different types of sharks all with their own distinct qualities. However, the nine species of hammerhead sharks are easily identified by the unique shape of their head which resembles a hammer and is the origin of their name. Hammerheads are cold-blooded mammals that can grow up to 25 feet in length and weight as much as 1000 lbs.
There’s a place in the world that they feed bull sharks, because when they do for the sharks they do not have to hunt. When they are full they do not hurt people. Bull sharks are just looking for food, and when they are fed they are really cool animals. Bull sharks are cool animals, here are some facts. They are fond all around the world, and they are found near shore lines.
They are found at a depth of 1500 meters inhabiting the Pacific Ocean. The frilled sharks can grow up to a size of 5 feet, and have sharp teeth remarkably in 25 different rows! This strange large mouth is entirely different from that of the other members of a shark family. Frilled sharks have the ability to bend their body when about to catch their prey. Many researchers insist that look like a snake at the time of predation.
Mastodon fossils have been found early in the excavation. In 1917, a report was published on a fragment of right maxilla where the author, Peterson, claimed that the Mastodon remains are “‘by far the most common in the Saltville deposit’” (Ray 616). A sample of Mammut Americanum fossils found before 1967 are deeply worn molars, cheek teeth, and multiple mandibular tusks ranging in size from 130 millimeters in length to about 1.5 meters in length. The largest and most recent Mammut tusk recovered is 2.13 meters in length (Moxley).
This essay will be exploring rouge sharks and will be expressing an informed opinion on why they should be conserved in most of the situations. In this essay points that will be discussed will be not limited to how sharks kill a relatively small amount of people, that sharks do not enjoy eating people and that. The main point that I would like to get across is that sharks do not like to eat people, after one bite they generally don’t come back for another taste as we as people don’t have enough fat or flesh on our body for a shark to bother eating us along with the fact that we are very bony compared to a sharks regular prey such as seals, smaller fish and even other smaller sharks which means that the sharks have evolved to digest those animals with small bones or hardened cartridge and not our big thick bones.
Their eyes on the side of their heads help them to look all around without fully turning their body. With the wider view of all around they can counter attack their predators attach. When the hammerhead shark goes to attack anything it will charge at its
The Great Hammerhead Shark has many physical attributions that make the species unique to other sharks. Perhaps its most well-known anatomical feature, the flat and t-shaped cephalophoil, aids the Great Hammerhead in catching prey. Ampullae of Lorenzini on the hammer-shaped head sense hidden prey, which especially benefits the hunting of stingrays. The variations within the cephalophoils differentiate hammerheads from each other. In addition, wide-set eyes give The Great Hammerhead shark a greater, more enhanced range of sight.
The ocean abounds with interesting animals of all shapes and sizes that have their unique appearances and habitats at different depths of the sea. The viperfish is a type of fish that lives at nine thousand feet under water and it is extremely dark down there. At this depth, the faint light that is visible down there helps the viperfish to blend in to hide from predators because they have photophers, little organs that produce light down the side of it, which makes them look invisible to predators. They also have a little lure like object that is over their head that attracts fish by blinking a light. When prey is near it, the viperfish can rotate his head and snatch the prey and eat it.
These vibrissae are as sensitive as human fingers and allow the manatee to feel its surroundings in a better manner. When feeding the manatee uses its split upper lip to help gather and manipulate food allowing them to easily grasp their food. The manatee only has hind molars that move to the front row slowly as teeth fall out , these molars are efficient for grinding down plants and other forms of vegetation that the manatee feeds on. While the manatee mainly lives in warmer waters they have a thick layer of fat covering their bodies in order to insulate themselves from the cold.
Some disagree with the theory about A. sediba 's place in the homnin lineage. René Bobe of George Washington University argues that A. sediba does not fit in the current timeline, citing the discovery of two 3.5 million-year-old partial skulls with Homo-like teeth found in Lake Turkana. William Kimbel of Arizona State agrees, offering the 2.3 million-year-old teeth with human traits that he found in East Africa as proof that humans existed prior to A. Sediba. Berger counters their arguments by stating that future findings may show that A. sediba is older than 1.9 million years and he warns that A. sediba proves isolated fossils cannot be assigned to a