3-D scans of fossils suggest new fish family tree
Science News,
PRIMITIVE FISH Polypterus (shown) is a living member of a large group of vertebrates called ray-finned fishes.
PRIMITIVE FISH Polypterus (shown) is a living member of a large group of vertebrates called ray-finned fishes.
Polypterids are weird and puzzling African fish that have perplexed biologists since they were discovered during Napoleon’s…
Around 400 million years ago, the world was warm. Animals were beginning to emerge from the oceans, and plants began to spread…
Around 400 million years ago, the world was warm. Animals were beginning to emerge from the oceans, and plants began to spread…