The Cambrian Explosion, part 4: Oxygen and hard parts
After the Ediacaran and the small shellies; in the Cambrian, oxygen in the sea finally reached a level where gilled animals could breathe efficiently and grow big. This oxygen was […]
After the Ediacaran and the small shellies; in the Cambrian, oxygen in the sea finally reached a level where gilled animals could breathe efficiently and grow big. This oxygen was […]
Dear blog, It’s been a while. I know. Stuff has happened. That virus, luckily it has only hit my travels, or caused the lack thereof. And something small, but very […]
Environmental activists sometimes scare us with the prospect of a runaway greenhouse: If we continue to spew out CO2, the Earth may become so hot that it is uninhabitable. Looking […]
Climate change is a confusing topic. The environmental movement with Greta Jeanne D’Arc Thunberg in front can give the impression that climate has been nice and stable since times long […]
Why did the fish go on land? Because it is evolution’s nature (to fill ecological niches. That’s why lobe-finned fish went on land around 370 million years ago and became […]
Imagine that you are a dinosaur. No, seriously, imagine that you are a dinosaur. Start with Velociraptor, the sickle claw killer of Jurassic Park. Replace the sickle and claws with […]
Before the 18th century, everything in the world was organic, artisan and handcrafted, because there was no other way. Weavers made clothes, blacksmiths made tools and nails, farmers went behind […]
Time goes by. In geology, lots of time goes by, and it is easy to loose perspective. If we cram the whole history of the Earth into one year, the […]
We all love a day on the beach! The sun, the salt water, fish playing, sand castles, a good book and ice cream. The soft sand… …the sand, which creeps […]
Porthleven is a cute village by the sea in Cornwall. One of many vibrant fishing villages turned tourist town in summer and (I assume) fairly slumbering in the winter. White […]