Rice's Whale (Balaenoptera ricei) — Critically Endangered Mammalia

Rice's Whale

Balaenoptera ricei

Conservation Status

Critically Endangered

Mammalia · Cetacea · Balaenopteridae

About

Rice's whale, also known as the Gulf of Mexico whale, is a species of baleen whale endemic to the northern Gulf of Mexico. Initially identified as a subpopulation of the Bryde's whale, genetic and skeletal studies found it to be a distinct species by 2021. In outward appearance, it is virtually identical to the Bryde's whale. Its body is streamlined and sleek, with a uniformly dark charcoal gray dorsal and pale to pinkish underside. A diagnostic feature often used by field scientists to distinguish Rice's whales from whales other than the Bryde's whale is the three prominent ridges that line the top of its head. The species can be distinguished from the Bryde's whale by the shape of the nasal bones, which have wider gaps due to a unique wrapping by the frontal bones, its unique vocal repertoire, and genetic differences.

Fun Fact

The species can be distinguished from the Bryde's whale by the shape of the nasal bones, which have wider gaps due to a unique wrapping by the frontal bones, its unique vocal repertoire, and genetic differences.

Quick Facts

Habitat

Live sightings in the western Gulf outside the core habitat, including one sighted off the coast of Texas that was genetically confirmed as a Rice's whale via biopsy.

Diet

Scavenger

Lifespan

To be updated

Threats

  • Habitat Destruction
  • Pollution
  • Invasive Species
  • Over-Collection
  • Climate Change

External Data Sources

Recent sightings on iNaturalist IUCN Red List profile

More Mammals Species

Abbott's Duiker EN Abbott's Gibbon EN Addax CR African Elephant EN African Forest Elephant CR African Wild Ass CR
Browse all Mammals →