Sea Level! What is it and how do scientists calculate it? As it turns out, there are actually many complexities in determining this measurement. For example, Earth isn’t actually a sphere, gravity is stronger and weaker at different points around the globe, and of course, there are a lot of mountains that are no where near water — so how do we know what sea level would be? In this video, Minute Physics explains the details.
“When I started doing this research, I was amazed that no one had ever done it before,” she said one morning earlier this week as we drove to her favorite dive site. Iceland has a lot of research questions related to biology and geology that have never been answered, let alone even asked. “Iceland is a really great place for a scientist with an explorer’s heart,” she says…
Ecologists are often asked why they might study one particular animal, especially a small one that has little impact on humans. Jónína’s answer goes like this: humanity might never be dependent on microscopic arthropods but understanding how animals work together, how they depend on each other holds lots more clues about an area’s environmental history—and its future. At the top of the world, seeing how species change and adapt may indicate what happens as the climate changes around the world.
From educator Scott Gass, artist Sandro Katamashvili, and TED Ed, How Big Is the Ocean? Watch this primer for understanding an incredibly large, important, and singular part of our planet Earth.
While the Earth’s oceans are known as five separate entities, there is really only one ocean. So, how big is it? As of 2013, it takes up 71% of the Earth, houses 99% of the biosphere, and contains some of Earth’s grandest geological features. Scott Gass reminds us of the influence humans have on the ocean and the influence it has on us.
From Untamed Science, a tour with Dr. Lindsay Zanno, Director of the Paleontology & Geology Research Laboratory at the North Carolina Museum of Natural Sciences.
The key things she emphasized were that a) it’s a lot of work b) it’s not glamorous c) rarely to they find complete skeletons d) they don’t excavate it with little brushes out in the field and e) they spend close to 50 times the effort on a skeleton, in the lab, once it’s been pulled out of the earth.
We are living through the most exciting period in the history of dinosaur paleontology. More than half of all known dinosaur species were discovered within the past 25 years, including nearly all of the remarkable feathered dinosaur specimens. One of the hottest areas for dinosaur discovery in North America is the Cedar Mountain Formation of eastern Utah, where new dinosaurs are being discovered and described at a phenomenal rate. These fossil beds span the last 25-30 million years of the Early Cretaceous, a time when North America was undergoing a period of climate change that resulted in localized extinction events and invasive dinosaur species.
Our team returns to Utah every year to hunt for new dinosaurs. This year we began excavations at an unprecedented dinosaur burial ground in the Cedar Mountain Formation known as the Crystal Geyser Quarry (CGQ). The CGQ is a mass mortality site entombing a rare and remarkable dinosaur dubbed Falcarius utahensis. One hundred and twenty-five million years ago an estimated 300 Falcarius individuals ranging in age from hatchlings to 4-meter long adults died and were buried here under mysterious conditions.