
What's the difference between dolphins and porpoises?
People use the terms dolphins, porpoises, and whales to describe marine mammals belonging to the order Cetacea (from the Greek work ketos, “large sea creature”), and often use them interchangeably.
Why Are Porpoises Called Dolphins? The Fascinating Connection
Aug 11, 2025 · Porpoises are called dolphins due to their similar physical characteristics and classification in the same family. Porpoises and dolphins are often used interchangeably to describe …
Dolphin vs Porpoise - Difference and Comparison | Diffen
Though both animals are very intelligent, dolphins are deemed to be more social and live in larger, more stable groups. Although "dolphin" and "porpoise" are often used interchangeably, the term porpoise …
Are Dolphins and Porpoises the Same Thing? - Wild Dolphin Project
Ever wondered what — if any — the differences were between porpoises and dolphins, and why it even matters? It turns out that while the words are used interchangeably, dolphins and porpoises are in …
Dolphins vs. porpoises: What’s the difference? - IFAW
Sep 29, 2025 · Dolphins and porpoises are both fascinating and intelligent animals. But what is the difference between a dolphin and a porpoise? These animals share many similarities, but several …
Porpoise vs Dolphin: 5 Ways That These Sea Mammals Are Different
Sep 18, 2024 · Perhaps the easiest way to tell dolphins and porpoises apart is the shape of their nose. The porpoise, regardless of the species, has a rather flat nose, and there’s no beak that extends …
Dolphin vs. Porpoise: 5 Key Differences You Didn’t Know
When you spot a sleek marine mammal leaping through ocean waves, do you know if you’re watching a dolphin or a porpoise? Most people use these terms interchangeably, assuming they’re looking at the …
What Is a Porpoise vs. a Dolphin? Key Differences
Oct 18, 2025 · Porpoises are generally smaller and possess a more robust body, with a rounded head that lacks the defined beak of most dolphins. Dolphins and porpoises also differ significantly in how …
Is There a Difference Between a Porpoise and a Dolphin?
Aug 23, 2025 · Dolphins are members of the family Delphinidae, often referred to as oceanic dolphins, while porpoises belong to the family Phocoenidae. The common confusion between these two …
Mistaken Identities: Dolphins vs. Porpoises - National Aquarium
Jul 2, 2024 · Porpoises have triangular dorsal fins, while most dolphins' dorsal fins are hooked or curved. Scientists often look at dorsal fins to differentiate between individual animals. As dolphins and …