18. Sea Otter

Sea otters were once hunted to near extinction for their luxurious fur. Today, they’ve made a heartening return to the kelp forests of the Pacific coast. Their playful presence is more than charming—it’s essential.
As keystone predators, sea otters help maintain balanced, healthy marine ecosystems by controlling sea urchin populations, allowing kelp forests to thrive. Their comeback highlights the crucial role top predators play in shaping their environments.
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