2018 brought the announcement of a new geologic age that covers the last 4,200 years. How do scientists divide up Earth’s timeline and what do these demarcations mean?
Romain Garrouste, Muséum national d’histoire naturelle (MNHN) et André Nel, Muséum national d’histoire naturelle (MNHN)
They hovered in the skies of the Earth 300 million years ago… The giant dragonflies will soon be the stars of the paleontology gallery of France’s Natural History Museum in Paris.
Dinosaurs had some bad luck, but sooner or later extinction comes for all of us.
rawpixel/Unsplash.com
Death is inevitable for individuals and also for species. With help from the fossil record, paleontologists are piecing together what might make one creature more vulnerable than another.
If you discovered a new type of dinosaur, what would you name it?
Mavis Wong CC-BY-ND
We know of about 900 valid dinosaur species that existed. ‘Valid’ means scientists know the dinosaur from enough of the skeleton bones to feel pretty sure that it differs from other known dinosaurs.
Euphanerops, a primitive jawless fish from the World Heritage site at Miguasha, Quebec, which has now been found to have paired hind limb structures and copulatory sex organs.
François Miville-Deschênes with permission
Sexual organs similar to what we see in sharks and rays today appeared many millions of years ago in much more primitive ancient fishes than was previously thought.
Cyanobacteria filled the ancient oceans and used chlorophyll to harvest the sun’s energy.
Specious Reasons
Did you recently hear news that Earth’s oldest pigments were hot pink? That’s not quite right. When they were in living bacteria a billion years ago, they were performing photosynthesis – and green.
The Earth is losing more and more biodiversity every day, and we should all be worried
A life reconstruction of Brindabellaspis stensioi, an unusual placoderm fish from the 400-million-year old Burrinjuck reef in New South Wales, Australia.
Jason Art, Shenzhen
Brindabellaspis had eyes on the top of the head, facing upwards, and a skull stretched into a long and broad snout. Although around 400 million years old, it was clearly a specialised fish.
Following NASA’s latest discovery of organic matter on the red planet, new findings in a salt lake in California could point to where to look for alien life.
An artist’s impression of Tutusius at Waterloo Farm.
Illustration by Maggie Newman
The 19th-century British anatomist Richard Owen downplayed the role of colonial contributors and largely ignored the importance of Aboriginal testimony and knowledge in describing the marsupial lion.
How we found the oldest human fossil ever discovered outside Africa and the Levant.
Paleoloxodon antiquus has been extinct for 120 000 years.
By Apotea (Own work) [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons