Evolution Of Sharks Essay
Sharks belong to a group of fish called Chondrichthyes. Meaning they have skeletons made of cartilage instead of bones. These marine animals have inhabited the oceans for almost 440 million years. Hundreds of millions of years before humanity was ever created. While the idea of dinosaurs dominates the idea of a prehistoric world, they weren’t alive until about 230 million years ago. This has allowed for these cartilaginous sharks to evolve over time into the creatures that we are accustomed to today.
While sharks aren’t killing machines, they are most definitely one of the biggest threats to humans within marine life. Although the human species are in their homes, the ocean is vital to the longevity of the human race. While we have many threats …show more content…
These years of evolution, most importantly the last few million, has enabled these prehistoric animals to develop many extraordinary abilities, making them perfect predators. Life on earth, according to scientists, is believed to have begun around 3.8 billion years ago. Then about 60 to 80 years later after the first fish appeared, came the sharks. They’ve inhabited the earth for far longer than humans have. In fact the first human like animal (hominid) dates back to only 4.5 million years ago with modern humans being alive for only about 60,000 years. Meaning that sharks have existed 100 times longer than humans and even 3 times longer than the dinosaurs who appeared 230 million years …show more content…
For instance, The Shallows, while being a dramatic version of what could actually happen, highlights the fears that we have as humans, The main character knew that the shark could threaten her life and instinctively removed herself from the water. While some may argue that we shouldn’t stereotype sharks and have a preconceived idea about all sharks, we possess these ideas about them for a reason. We take what scientists and researchers have told us about sharks behaviors and anatomy and apply it to how we react to them. This allows humans to protect themselves from
While sharks aren’t killing machines, they are most definitely one of the biggest threats to humans within marine life. Although the human species are in their homes, the ocean is vital to the longevity of the human race. While we have many threats …show more content…
These years of evolution, most importantly the last few million, has enabled these prehistoric animals to develop many extraordinary abilities, making them perfect predators. Life on earth, according to scientists, is believed to have begun around 3.8 billion years ago. Then about 60 to 80 years later after the first fish appeared, came the sharks. They’ve inhabited the earth for far longer than humans have. In fact the first human like animal (hominid) dates back to only 4.5 million years ago with modern humans being alive for only about 60,000 years. Meaning that sharks have existed 100 times longer than humans and even 3 times longer than the dinosaurs who appeared 230 million years …show more content…
For instance, The Shallows, while being a dramatic version of what could actually happen, highlights the fears that we have as humans, The main character knew that the shark could threaten her life and instinctively removed herself from the water. While some may argue that we shouldn’t stereotype sharks and have a preconceived idea about all sharks, we possess these ideas about them for a reason. We take what scientists and researchers have told us about sharks behaviors and anatomy and apply it to how we react to them. This allows humans to protect themselves from