In 1999, Tyler Lyson discovered the remains of a hadrosaur in South Dakota. The skin and muscle tissue of this fossil, nicknamed Dakota, are intact. CT scans of the preserved body have yielded many new ideas about dinosaurs' bodies and organs. The fossilized skin looks like stone, so ...
Many natural resources are disappointed of being wasted on our planet every day. One of the most important resources we are abusing is our trees. Each year , hundreds of thousands of acres of trees disappear in countries all around the world . In some countries , these trees are used for ...
Frogs and humans have many comparable body systems, including the respiratory system. Both use their lungs to take in oxygen and expel waste gasses like carbon dioxide. There are differences in the way they breathe, and in the way frogs supplement their oxygen intake through their skin. Understa...
One of the major reasons is that the habitats of many wild animals are polluted or destroyed. At the same time,the food some animals mainly feed on is being scarce,leading to starvation. Besides,a great many wild animals are hunted for food or money each year. All in all,human beings a...
Their remains accumulated on the floor of the lake and were then covered by clay and silt. Among the superbly preserved Messel fossils are insects with iridescent exoskeletons (hard outer coverings), frogs with skin and blood vessels intact, and even entire small mammals with preserved fur and ...
What if we were more in tune with the age-old rhythms of the seasons? There’s much research that shows we would live a healthier, happier, and more productive life. Here are tips on how to live seasonally—and make the most of each season. Every main season in a four-season climate...
aThere are two treefrogs considered "sibling species". One is a diploid (normal) form; the other is a tetraploid, with four sets of chromosomes, rather than two. The only other way to tell tham apart is by the call. If you have preserved specimens and cannot karyotype them, you cannot...
How many endangered species are there in the Amazon rainforest? How many raccoons are there in the world? How many tarsiers are left in the Philippines? How many endangered species are there in Costa Rica? How many claws does a wolf have? How many lemur leaf frogs are left in the world...
How does this structure depend on the dynamics of the cortical network during the movement epoch, and on downstream motor processes? Must preparatory activity converge to a single movement-specific state and be held there until movement initiation, or is some slack allowed? What are the dynamical...
It’s because there are limits to using preserved bodies. Many are old and some structures don’t look the same as they would in a living patient and are very hard to find. Simulations are meant to be easier to use, witheasier-to-see structures, whereas cadavers have some organs that ...