How many sea mammals start with H?

12 of the 141 sea mammals in Icillion start with H, for example Humpback whale, Harbour seal and Harp seal.

What is the longest name among sea mammals that start with H?

The longest is “Hector's beaked whale” and the shortest is “Harp seal”.

Nature · lists

The full list of sea mammals starting with H: 12 names, taken from the 141 answers to “Name a mammal that lives in the sea” in Icillion.

H is the 2nd most common first letter in this list: 12 of the 141 sea mammals (9%).
Shortest: “Harp seal”. Longest: “Hector's beaked whale”.
12 names have more than one word.
4 can be spelled more than one way, and all the spellings count.

How many sea mammals start with H?: 12 of the 141 sea mammals in Icillion start with H, for example Humpback whale, Harbour seal and Harp seal.
What is the longest name among sea mammals that start with H?: The longest is “Hector's beaked whale” and the shortest is “Harp seal”.

How deep does your knowledge go?

Seven prompts a day, twenty seconds each. Obvious answers float on the tip of the iceberg; rare ones sink all the way to the trench.