Are Sharks Older Than Trees? The Truth About Earth’s Oldest Predators

 

Credit: Kevin Lino NOAA/NMFS/PIFSC/ESD

Sharks are far older than trees, with fossil evidence showing they first appeared about 400 million years ago, while trees emerged around 350 million years ago. This gives sharks a 50‑million‑year evolutionary head start. Early sharks had cartilaginous skeletons, multiple rows of teeth, and sharp senses, traits that made them efficient hunters and remain central to their survival today.

Over the ages, sharks endured all five mass extinction events, including the asteroid strike that wiped out the dinosaurs. Their resilience comes from adaptable diets, acute senses like smell and electroreception, varied reproductive strategies, and streamlined bodies that have required little change. When sharks first swam Earth’s seas, land was barren, covered only with mosses and fungi; forests developed much later.

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