How Bull Sharks Adapt (Full Episode) | World's Most Iconic Animals

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Published Nov 12, 2026

What are bull sharks? In this full episode of World's Most Iconic Animals from National Geographic, learn all about the large, stout-bodied predator, including how bull sharks have survived 450 million years thanks to their adaptability, thriving in both salt and fresh waters. Unlike most sharks, bull sharks can adjust their internal salt to live comfortably in freshwater. Their live birth, powerful jaws, and sharp senses make them apex predators, but climate change and overfishing now threaten their future, making conservation crucial.

World's Most Iconic Animals | S1 E2

Chapters:
00:00 - Introduction
01:46 - Evolutionary Origins & Prehistoric Survival
07:07 - Unique Adaptations
11:01 - Mating Habits, Gestation, & Birth
20:41 - Ecological Role
27:08 - Anatomy of a Killer
33:14 - Hunting Technique
36:59 - Conservation Efforts

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About National Geographic Animals:
National Geographic Animals brings you closer to the wild than ever before. Take a journey through the animal kingdom to discover fierce predators, surprising behaviors, adorable babies, and more through our fascinating wildlife documentaries, series, and specials.

Meet the Bull Shark (Full Episode) | World's Most Iconic Animals | Nat Geo Animals
https://youtu.be/gUcOy4EG-Mc