Marine Mammals

noun a marine mammal of the order Cetacea, which includes whales, dolphins, and porpoises

• The study of cetacean behavior is a complex and fascinating field of research.
• I saw a group of cetaceans swimming in the ocean today, they were so graceful.
• Dude, did you see that huge cetacean jump out of the water? It was epic!
• Her singing voice was like the song of a majestic cetacean, powerful and beautiful.

noun a marine mammal typically found in oceans and known for its intelligence and playful behavior

• The dolphin is a highly intelligent marine mammal known for its playful behavior.
• I saw a dolphin jumping out of the water while I was at the beach.
• That guy is as smooth as a dolphin in the water.
• Her laughter was like the joyful squeaks of a dolphin.

noun a small toothed whale with a blunt snout and a triangular dorsal fin

• The porpoise is a small toothed whale that is often found in coastal waters.
• I saw a porpoise swimming near the shore while I was at the beach.
• Check out that cool porpoise doing flips in the water!
• The team worked together like a pod of porpoises, smoothly and efficiently.

noun a very large marine mammal with a streamlined body and a horizontal tail fin, breathing air through blowhole(s) on the top of its head

• The whale population has been steadily decreasing due to overfishing and pollution.
• I heard there was a whale sighting off the coast yesterday!
• That party was a whale of a time!
• She felt like a small fish in a big pond, surrounded by whale-sized competitors.

noun a waxy substance found in the head cavities of sperm whales, used in making candles, cosmetics, and ointments

• Spermaceti is a waxy substance found in the head of the sperm whale.
• Have you heard of spermaceti? It's this weird stuff in whale heads.
• I have no idea what spermaceti is, sounds like some alien material.
• Her skin was as smooth as spermaceti, glowing in the sunlight.

noun a type of whale with a long spiral tusk protruding from its head

• The narwhal is a medium-sized toothed whale that lives in the Arctic waters.
• I heard that narwhals have long tusks that look like unicorn horns!
• Check out that narwhal chilling in the water, it's so cool!
• She's as rare as a narwhal sighting in the wild.

noun a large aquatic mammal with a rounded body and paddle-like flippers, also known as a sea cow

• The manatee is a large, herbivorous marine mammal that can be found in shallow coastal waters.
• I saw a manatee swimming near the dock while I was fishing.
• Check out that sea cow, it looks like a manatee!
• She moved through the crowded party like a graceful manatee gliding through the water.

noun a large, eared seal found in Pacific coastal waters, especially the California sea lion and the Steller sea lion

• The sea lion population in that region has been steadily increasing over the past decade.
• I saw a sea lion playing in the water near the pier today.
• Check out that cool sea lion chilling on the rocks!
• She moved through the crowd with the grace and agility of a sea lion in the water.