Marine mammals are animals that live in the ocean and have special adaptations to survive in water. They include creatures like dolphins, whales, seals, and sea lions. Full definition
The emergency action plan will be led by the Mexican government and supported by a consortium of marine mammal experts from more than a dozen organizations around the world. (sciencedaily.com)
It was a rescue center for marine mammals, so seeing the funding issues was an eye - opener. (veterinaryschools.com)