Maybe you've seen a "mermaid's purse" while walking on the beach. Not actually an accessory for the mythical creature, these small casings are the eggs of sharks and their relatives. For around 455 ...
Deep below sunlight, a rarely seen frilled shark reveals ancient anatomy, slow reproduction, and mysterious habits, offering ...
An ancient shark older than forests still glides through deep oceans today. Its strange teeth, slow life cycle, and ...
The deep sea also harbours some of the most intriguing and alien-like species in existence, yet for several centuries, these ...
1. Introducing sharks, skates, rays, and chimaeras -- What are sharks and how are they classified -- How many kinds of sharks are there -- How did sharks get their name -- Where do shards live -- When ...
Trees first appeared on Earth during the Devonian period, around 385 million years ago, and dinosaurs about 100 million years later, between 250 to 200 million years ago. But you might be surprised to ...
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