Ask the Chatbot Games & Quizzes History & Society Science & Tech Biographies Animals & Nature Geography & Travel Arts & Culture ProCon Money Videos

seahorse: Quick Facts

Written and fact-checked by
The Information Architects of Encyclopaedia Britannica

The Information Architects maintain a master list of the topics included in the corpus of  Encyclopædia Britannica, and create and manage the relationships between them.
The Information Architects of Encyclopaedia Britannica
Last updated

News •

Scientists discover mysterious seahorse lookalikes that no one has ever seen alive • Oct. 29, 2026, 10:09 PM ET (Science Daily)

Facts

Also Known As sea horse • Hippocampus

Photos and Videos

Lined seahorse (Hippocampus erectus)
Illustration of a lined sea horse (Hippocampus erectus) shown in profile with a curled tail, textured body, and a scale bar indicating its size as approximately 2 inches or 5 centimeters long.
seahorse
A pregnant male seahorse with a swollen belly clings to a plant stem in an aquarium, surrounded by yellow aquatic plants and white gravel.
Five facts about seahorses
All about ray fins: Seahorses, trunkfish, and more
See All Videos and Images →

Related Topics and References

Topics
Dig Deeper: More Articles That Discuss This Topic

Related Quizzes

Dromedary camels (Camelus dromedarius). Animals, mammals.
Ultimate Animals Quiz
tropical two-wing flying fish (Exocoetus volitans). Beloniformes, ichthyology, fish plates, marine biology, tropical two wing flying fish, tropical two-wing flyingfish, tropical two wing flyingfish, tropical fish, fishes, animals.
Know Your Fish Quiz
Encyclopaedia Britannica thistle graphic to be used with a Mendel/Consumer quiz in place of a photograph.
36 Questions from Britannica’s Most Popular Science Quizzes
The bearded vulture (Gypaetus barbatus) is seen in Switzerland on December 2024
Animal Factoids
Lion (panthera leo)
Deadliest Animals Quiz
If You'd Only Be My Valentine, American Valentine card, 1910. Cupid gathers a basket of red hearts from a pine tree which, in the language of flowers represents daring. Valentine's Day St. Valentine's Day February 14 love romance history and society heart In Roman mythology Cupid was the son of Venus, goddess of love (Eros and Aphrodite in the Greek Pantheon).
The Love Quiz
The cheetah is the fastest land animal over short distances. It has become an endangered species in Africa, and is almost extinct in Asia. Cheetah mother with young. Cheetah cubs
Moms of the Animal Kingdom Quiz
Young chimpanzee dressed in a shirt and sweater vest, scratching his head thinking. (primates)
Wild Words from the Animal Kingdom Vocabulary Quiz
Mute swan with cygnet. (birds)
Match the Baby Animal to Its Mama Quiz
Sea otter (Enhydra lutris), also called great sea otter, rare, completely marine otter of the northern Pacific, usually found in kelp beds. Floats on back. Looks like sea otter laughing. saltwater otters
Animal Group Names