Each year, the discovery of new shark species underlines how little we know about ocean biodiversity. In a recent report conducted by Sibert and Rubin, they reported an unexpected finding: a large-scale extinction of sharks in the pelagic ocean, the largest ecosystem on Earth, about 19 million...
However, there are many species of sharks, and not every shark follows the same pattern. Circumstances can also change the pattern of attack. Shark attacks in deep sea water are usually not hit-and-run attacks. In these cases, where the victims are often the survivors of sinking ships or ...
3. Why are many different sharks mentioned in paragraph 4? A.To present the large number of kinds. B.To show how sharks developed in the fresh water. C.To give examples of sharks living in the fresh water. D.To tell us the living conditions of the sharks. ...
A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of the shark species. The team looked at the retinal cells of 17 species of shar...
主旨大意。根据第二段内容“A team at the University of Western Australia studied the visual systems of many different species of sharks and what they have found is diversity in eye design that mirrors the ecological and behavioral diversity of theshark species. The team looked at the retinal cell...
Sharks don’t sink and they are actually quite buoyant despite the size of some species. They would sink like a rock if it wasn’t for a few cool features.Shark Week is coming soon!So we are taking a closer look at these amazing creatures of the ocean world. Let’s start with a qu...
]. Now, there are 11 types of baleen whales divided into four different families: Family Eschrichtiidae, which is just the gray whale. Family Balaenopoteridae, which includes the humpback, blue, fin, sei, Bryde's and minke whales. These whales are also known as rorqual whales. Family ...
Sharks are a vital part of the ocean's ecosystem and sadly,overfishinghas left many species of shark in danger ofextinction. The International Union for Conservation of Nature (IUCN) lists three kinds of thresher sharks as vulnerable worldwide. The mako shark has been moved from near threatened...
How many different types of wolves are there? How long do cows live? How is a gray wolf born? How are gray wolves adapted to the tundra? Where did dire wolves live? What is the habitat of the gray wolf? What habitat do red wolves live in?
Some species don't need a swim bladder because they spend all their life skimming along the ocean floor. Other fish, such as rays and sharks, ascend and descend by propelling themselves forward. Just as in an airplane, the movement of fluid under the fins creates lift, which pushes the ...