A trove of fossils in China, unearthed in rock dating back some 436 million years, have revealed for the first time that the mysterious galeaspids, a jawless freshwater fish, possessed paired fins.
Evolution
Sep 28, 2022
0
142
Early tetrapods, such as Ichthyostega, moved onto land from aquatic environments over 350 million years ago. Skeletal anatomy demonstrates that the front and hind limbs of these early tetrapods correspond to the pectoral ...
Archaeology
Oct 28, 2016
0
19
For more than a century, the world's oceans have been becoming steadily more acidic as they soak up ever-increasing amounts of carbon dioxide from the atmosphere, and the impacts can be fatal for invertebrates such as shellfish, ...
Plants & Animals
Feb 21, 2019
0
200
University of Oregon biologists have produced a detailed genome of the snakelike gulf pipefish, delivering a new research reference tool to help explore an ancient fish family that includes seahorses and sea dragons and has ...
Biotechnology
Dec 22, 2016
0
13
The mode of reproduction seen in modern sharks is nearly 400 million years old. That is the conclusion drawn by Professor Per Erik Ahlberg, Uppsala University, from his discovery of a so-called "clasper" in a primitive fossil ...
Archaeology
Jul 13, 2009
2
0
