These will tell you what kind of gender the shark is. One side is just a regular fin and males they have claspers, these are involved in reproduction in delivering the sperm. On a male, they have two claspers. Dogfish sharks are very easy to tell the difference if it’s a female or male. The front part of the shark is basically the nose end of the shark which is known as the rostrum.
The hammerhead sharks are excellent predators that belong to the order Carcharhiniformes and family Sphyrnidae. Members of this family of sharks have unique head structures that extends to form a hammer-shaped (T-Shaped) cephalofoil that have different functions including sensing, water maneuvering, and manipulating prey. This family has two genera; Eusphyra and Sphyrna. Hammerheads are distant relatives of the mid-Tertiary period carcharhinid sharks. Today, species of the hammerhead include Eusphyra blochii (Winghead shark), Sphyrna corona (Scalloped bonnethead), Sphyrna couardi (Whitefin hammerhead), Sphyrna gilberti (Carolina hammerhead), Sphyrna lewini (Scalloped hammerhead), Sphyrna media (Scoophead), Sphyrna mokarran (Great hammerhead),
Regarding size, the typical octopus brain is as big as the brain of the clever, well-known African gray parrot, Alex. This parrot learned one hundred words and could also use them meaningfully. Two-fifths of the octopus’s neurons are found in its central location, around the esophagus and behind its eyes. Three-fifths of its neurons “are not in the brain; they’re in its arms.” Which appears to explain how the octopus makes such intricate moves with all of its eight arms so quickly and
The Pintails heart is like a mammals consisting of four chambers, two ventricles and two atria. The left ventricle pumps blood to all major organs in the body and throughout the rest, only excluding the lungs. This causes the left ventricle to be larger and more muscular. The lungs are fed blood from the right ventricle, which is the only the only function of that ventricle. The oxygenated blood coming from the lungs is fully separated from the oxygenated blood coming from other parts of the body.
They are very similar to normal lizards. The big difference between is that Frill-neck lizard has a large frill around its neck which is usually folded around their body to protect themselves. They are able to run on its hind legs. Scientific classification Kingdom Animalia Phylum Chordate Class Sauropsida Order Squamata Suborder Lacertilia Family Agamidae Subfamily Agaminae Genus Chlamydosaurus Species Chlamydosaurus kingii Habitat of Frilled-neck lizard They are mainly found in northern part of Australia and southern New Guinea. They get used to live in humid climates and tropical woodlands.
The Atlantic Horseshoe Crab is an amazing a unique animal. Despite it 's name it not really a crab. It is actualy more colsly related to spiders, ticks and scorpians. It is in the Animalia kingdom and is in the Arthropoda phylum. It 's most common name is the Horseshoe Crab but it 's scientific name is Limulus polyphemus.
Baleen is made mostly of keratin, a substance found in our fingernails and hair. Baleen whales, some of which are the largest animals to have ever lived on earth, eat some of the smallest, most abundant life in the oceans: plankton. Some baleen whales also eat small schooling fishes, and a variety of crustaceans such as krill, copepods, and amphipods. Baleen whales use baleen to strain food from the water. Some feed by swimming with their mouths wide open.
"In the 1950s, the world's fishing fleets were taking roughly 40 million tonnes of marine biomass from the world's oceans every year. By the 1980s, it was 80 million tonnes" (Glavin, 2013, p.167). Glavin makes it seem like sealing takes less from the sea than commercial fishing. But Glavin misrepresents the information by using different measurements, comparing weight to individually counted seals. And while some of Glavin's numbers are supported by Friscolanti's article, much of his information lacks citations and references.While this article is not scholarly and does not require citation, the fact that Glavin does not provide any way of validating his information weakens his
The sea otter propels itself underwater by moving the rear end of its body, including its tail and back feet, up and down. The sea otter can go up to 9 km/h. When underwater, its body is long and streamlined. When at the surface, it usually floats on its back and moves by sculling its feet and tail from side to side. Long, sensitive whiskers and front paws help the sea otter find prey by touch when waters are dark or murky.The Sea Otters sense of smell is more important than its sight as a sense of
Centipedes were noticed in the in the classical times. Centipedes were mentioned by an Elian, who says that the whole population of a town called the Rhetium were driven by a group of scolopendras and this was said that it should be a marine animal. centipedes occur in all continents with about 1700 species recorded worldwide. Millipedes share one invariable