Why do fish have vertical tail fins and whales have horizontal ones? - BBC Science Focus Magazine

Fish BBC Science Focus Magazine

Marine Education and Research Society – Conducting scientific research and providing education in order to promote conservation and understanding of marine ecosystems.

Are there any particular advantages to fishes' tails being vertical and whales' flukes being horizontal? - Quora

Fish Farmer March 2024 by Fish Farmer Magazine - Issuu

Why fish have vertical fins, and dolphins and whales not? — Steemit

science based - Is it more likely that merfolk would evolve with horizontal or vertical tails? - Worldbuilding Stack Exchange

science based - Is it more likely that merfolk would evolve with horizontal or vertical tails? - Worldbuilding Stack Exchange

Toothed whale - Wikipedia

Save Our Seas, 10, Summer 2019, Sea of Sound, Ocean of Intelligence

Why do whale and dolphin tails go up and down? - Whale & Dolphin Conservation USA

Why orcas are more 'caring' than 'killer' whales - BBC Science Focus Magazine

Why fish have vertical fins, and dolphins and whales not? — Steemit

All Fish Have Vertical Tails While All Whales Have Horizontal Tails. Why?