Sharks are one of the oldest living species on Earth, having existed for more than 400 million years. This predates even the existence of trees, which first appeared around 350 million years ago. Sharks have survived through multiple mass extinctions and have adapted to various environmental changes, making them some of the most resilient creatures on the planet. Their basic body structure has remained relatively unchanged for millions of years, which speaks to their evolutionary success.

The Evolution of Sharks

Sharks have evolved into over 500 different species today, ranging from the tiny dwarf lantern shark to the massive whale shark. Their long history has allowed them to develop specialized features such as sharp teeth, streamlined bodies, and electroreception to detect prey. Despite their ancient lineage, sharks face modern threats, primarily due to human activity such as overfishing and habitat destruction. Their continued survival is a testament to their adaptability, but it’s crucial that we work to protect these fascinating creatures. Shutdown123