Megalodon was likely a long, streamlined predator, not a bulky giant. Scientists compared its bones with modern sharks.

Megalodon may have been up to 80 feet long, but the colossal extinct shark was also probably thinner than scientists ...

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Megalodon’s teeth resemble those of a modern great white shark, so some scientists previously concluded that the two sharks had a similar stout body shape ... a more streamlined fish, such ...

The black skirt tetra, scientifically known as Gymnocorymbus ternetzi, is a popular freshwater fish species among aquarium enthusiasts. With its sleek and streamlined body shape, this tetra ...

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For many of us, the ocean is a beautiful place full of wonder and mystery. On the surface, the water is an amazing scene that ...

these early fish adapted to various ecological niches, and some developed characteristics that would allow them to dominate marine food chains. Sharks have evolved a range of adaptations that make ...