- What was the first shark on earth?
- How old do sharks get?
- What is the oldest species on Earth?
- What killed the Megalodon?
- What hunted the megalodon?
- Who is older sharks or dinosaurs?
- Did sharks exist before dinosaurs?
- Do Dinosaurs Still Exist?
- Is there a megalodon still alive?
- What animal killed the Megalodon?
- What animal could kill a Megalodon?
- What are sharks older than?
- What came first dinosaurs or Adam and Eve?
- What are the 6 mass extinctions?
- How long have humans existed?
What was the first shark on earth?
The earliest fossil evidence for sharks or their ancestors are a few scales dating to 450 million years ago, during the Late Ordovician Period.
Emma Bernard, a curator of fossil fish at the Museum, says, ‘Shark-like scales from the Late Ordovician have been found, but no teeth..
How old do sharks get?
Greenland sharks have the longest known lifespan of all vertebrate species (estimated to be between 300–500 years), and the species is among the largest extant species of shark.
What is the oldest species on Earth?
CyanobacteriaCyanobacteria are the oldest existing species in the world. These bacteria are believed to be the Earth’s oldest known life form. Fossilized stromatolites – a type of layered rock made up of microbial mats of microorganisms – dating back to over 3.5 million years ago contain evidence of cyanobacteria activity.
What killed the Megalodon?
A new study suggests that a tsunami of cosmic energy from a supernova killed off large ocean animals – including the huge megalodon shark – 2.6 million years ago. A shower of particles may have spelled curtains for the megalodon, a school-bus-sized shark, 2.6 million years ago.
What hunted the megalodon?
Mature megalodons likely did not have any predators, but newly birthed and juvenile individuals may have been vulnerable to other large predatory sharks, such as great hammerhead sharks (Sphyrna mokarran), whose ranges and nurseries are thought to have overlapped with those of megalodon from the end of the Miocene and …
Who is older sharks or dinosaurs?
A: Sharks were swimming around in the ancient seas 150 million years before the first dinosaurs rumbled about on land.
Did sharks exist before dinosaurs?
Sharks have been around a long, long time. … Today’s sharks are descended from relatives that swam alongside dinosaurs in prehistoric times. In fact, the largest predator of all time was a shark called a Megalodon. It lived just after the dinosaurs, 23 million years ago, and only went extinct 2.6 million years ago.
Do Dinosaurs Still Exist?
Other than birds, however, there is no scientific evidence that any dinosaurs, such as Tyrannosaurus, Velociraptor, Apatosaurus, Stegosaurus, or Triceratops, are still alive. These, and all other non-avian dinosaurs became extinct at least 65 million years ago at the end of the Cretaceous Period.
Is there a megalodon still alive?
But could megalodon still exist? ‘No. It’s definitely not alive in the deep oceans, despite what the Discovery Channel has said in the past,’ notes Emma. ‘If an animal as big as megalodon still lived in the oceans we would know about it.
What animal killed the Megalodon?
The great white shark (Carcharodon carcharias) may have wiped out the giant megalodon (Otodus megalodon). But scientists may have miscalculated megalodon’s time of death by about 1 million years.
What animal could kill a Megalodon?
Taking a fresh look at the fossil record, researchers are now proposing that this mega marine creature may have been killed off by none other than the modern great white shark (Carcharodon carcharias). The timing is everything.
What are sharks older than?
Sharks are older than trees Sharks have existed for more than 450 million years, whereas the earliest tree, lived around 350 million years ago. Not only are sharks older than trees, but they are also one of the only animals to have survived four of the five mass extinctions – now that’s impressive.
What came first dinosaurs or Adam and Eve?
The first has dinosaurs, alongside Adam and Eve, living in harmony. The ferociously fanged T. rex is likely to be a vegetarian. Then comes the Fall of Man and an ugly world where dinosaurs prey on each other and the first extinctions occur.
What are the 6 mass extinctions?
Ordovician-Silurian extinction – 444 million years ago.Late Devonian extinction – 383-359 million years ago.Permian-Triassic extinction – 252 million years ago.Triassic-Jurassic extinction – 201 million years ago.Cretaceous-Paleogene extinction – 66 million years ago.Extinction today.
How long have humans existed?
We are still learning about our ancestors, but we guess that the first humans existed between five and seven million years ago: the median time is six million years ago. These humans walked upright on two legs, just like us. Around 90,000 years ago, these humans started making tools to catch fish.