Amazing Sea Animals and Ocean Creatures You Have to See. Posted: December 27, 2024 | Last updated: March 7, 2025. ... See the first new dire wolf cubs born in over 12,000 years.

Humans know of about 245,000 marine species. The most common sea animals are those without a backbone, such as jellyfish and shrimp. There are thousands of species of jellyfish and shrimp.