Page 154 - Gary Greaser

Have you ever wondered why cave bears have ‘cave’ in their names? The reason is quite simple: most of their fossils have been found in caves. Brown bears of today also use caves but they use them only for hibernation purposes. Cave bears, on the other, spent a great amount of their time in caves, as per experts.

If you were asked to name types of whales, what would spring to your mind? Chances are you would think of the blue whale or the humpback whale. And why not? They are some of the most popular whales in existence. The blue whale is the largest animal to ever live. A recent fossil discovery of an ancient blue whale, named Leviathan or Livyatan, has proven that these behemoths have been roaming the waters for quite a while.

The distinction between mastodons and mammoths has been a matter of discussion for a long time. Mastodons are often confused with being directly related to mammoths. However, they are quite different from the latter species.

The distinction between mastodons and mammoths has been a matter of discussion for a long time. Mastodons are often confused with being directly related to mammoths. However, they are quite different from the latter species.

Deinonychus, a 7-foot-long dinosaur belonging to a genus of dinosaurs known as maniraptors, or "hand-robbers." It has sharp claws on its hands and feet for capturing and holding prey and was known as the red terrible claw dinosaur. The hollow bones and long legs of the dinosaur indicate quick and agile mobility.

The Deinonychus exhibit is the world's sole genuine fossil example of its kind on display. The skeletons of Deinonychus and early birds are comparable, indicating that current birds are descended from small dinosaurs. Deinonychus could cling to its prey with its lethal front claws. Each foot swiveled one huge claw, ready to rip prey apart with a kick. When not in use, the claw was kept sharp by being stored out of the way. Deinonychus might have pursued Tenontosaurus. It's been speculated that Deinonychus lived and hunted in packs, based on the discovery of several hundred Deinonychus bones in a single quarry by paleontologists John Ostrom and Grant E. Meyer in southern Montana

540 million years ago, there were trilobites, one of the biggest marine population with the most species back then that kept dotting the ocean floors for the next 270 million years before their existence came to an end. These 270 million were their era of glory when they survived, thrived, and eventually turned into rare trilobite fossils that continue to excite fossil enthusiasts.

Trilobites get their name from the Latin language where tri-lob-ite means three part body that are cephalon, thorax, and pygidium. In case you’re someone who loves knowing about fossils and their deep secrets, trilobites can be a great choice. They offer everything a fossil enthusiast looks for.

Here are 5 interesting facts about these rare trilobites that will leave you surprised:

1. There are more than 20,000 recorded species

   
   This one thing is enough to understand the scale at which trilobites survived and thrived the ocean waters. The extent of their existence was so huge that their fossils can be found in all

Are you one of those people who think Pterosaurs are dinosaurs? If you are, then you are mistaken. These flying reptiles can be called a distant dinosaur cousin, but they aren’t dinosaurs. There are a lot of misconceptions about these extinct group of winged reptiles. In this blog, our aim is to clear up all those misconceptions by sharing with you some key facts about Pterosaurs. Let’s get started.

Pterosaurs Are Not Dinosaurs

It has been found that the only link between dinosaurs and Pterosaurs is a common ancestor, which is believed to have lived around 230 millions years ago. Beyond this, there are no connections between the two as both of them evolved along different pathways. A unique fact about Pterosaurs is that they dwelled on every continent on Earth. Yes, they inhabited even the Antartica as Antartica was a lot warmer all those millions years ago. They walked on Earth for about 150 million years and then went extinct.

Pterosaurs Were Not Birds Either

We all know that the birds

It is no surprise that there is a widespread and pretty lucrative market for fossils. But did you know that it was a Tyrannosaurus fossil that was excavated in 1990 and auctioned for a whopping $7.6 million that set off this fossil frenzy? It has been often referred to as the “modern gold rush.” Expensive fossils began to be treated as status symbols, which inevitably drew in both rich buyers and unethical sellers looking to make a quick buck. And that also led to the emergence of fake and forged fossils. Even today, this is an issue that plagues both fossil collectors and paleontologists. The market is flooded with enhanced fossils, composite fossils, reconstructed fossils, fossil casts, and fossils that are outright fake. Some of these are easy to identify, but some counterfeits can be quite hard to spot. While professionals use a number of techniques including CT scan and synchrotron, if you are a novice, here are some of the ways in which you can differentiate between fake and authentic

Besides the ghastly and impressive shapes of dinosaurs, there’s one thing that never ceases to amaze paleontologists and the general public around the world: their gigantic size.

Take Argentinosaurus, for instance. This titanosaur had a massive size and weighed between 50 and 90 tonnes, as believed by scientists. And if you look at today’s mammals, most of them are only between 10 and 100 kilograms in weight, while only the blue whale surpasses the size of dinosaurs. No wonder people look for titanosaur teeth for sale these days.

With a difference of such magnitude between the long-gone dinosaurs and today’s mammals, it makes sense why people wonder and question: how did dinosaurs grow so big?

Let’s look at the reasons that may have caused dinosaurs to grow so big.

Large body protected dinosaurs from most predators

While it didn’t happen in a blink, dinosaurs eventually grew bigger as part of their evolution. But the reason behind their evolution can be the protection they got from having

When trilobites emerged in the oceanic environment during the Cambrian period, they were already fully formed creatures. They had complex digestive systems, highly developed eyes, and functional calcite carapaces that were quite admirable. In other words, the most advanced life form at that moment on our planet were trilobites! While getting a well-preserved, authentic trilobite fossil is a daunting task, it is also among the most prized possession for a collector. So, we keep adding authentic trilobite fossils for sale to our selection.

Today, we will talk about trilobite eyes. It was fascinating that the creature developed a sophisticated visual system, although not the first one in the animal kingdom with eyes. But there were trilobite suborders, like Agnostina, who were primarily eyeless. The majority had compound pairs of eyes, typically placed on their fixigenas or the fixed cheek shell outer edges.

A Good Eye Design

Trilobite had crystalline lenses that were rigid and could not change