Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological ...

Research on fossilized fish from the late Devonian period, roughly 375 million years ago, details the evolution of fins as they began to transition into limbs fit for walking on land. Much of the ...

Limbs can be incredibly useful. Whether it’s the wing of a bat, the elongated leg of a hopping frog or our own grasping arms, limbs have been adapted to all sorts of ecosystems and functions through ...

A 400 million-year-old fossilized fin from a strange-looking, primitive fish is shedding light on how fins evolved into limbs that enabled animals to walk on land. The fossil fin comes from a ...

The paddlefish is a surreal giant, with a spatula-shaped nose that some scientists believe it uses to sense the electric fields of its prey, which it sucks up like a whale. You might not think of it ...

Each time your fingers curl around an object, you are using a structure shaped over hundreds of millions of years. Human hands, like all vertebrate limbs, have a clear top and bottom: a palm, its ...

Scientists have long puzzled over how animals’ stripes, spots, dots, blazes and other color patterns arise. One of the most popular theories was proposed in 1952 by British mathematician Alan Turing, ...

Many fish species evolved parts of their fins into sharp, spiny, needle-like elements -- called fin spines -- that function to protect the fish against predators. Such spines have evolved ...

To answer how animals made the transition from sea to land, scientists have traditionally looked to the fossil record. But in the past 30 years, scientists have searched for changes in genes that can ...

Figure 3: Gene expression patterns of stage 27–28 S. canicula embryos. Figure 4: A, Series of pectoral appendages comparing the dogfish with other species in which the metapterygial axis is freed from ...

Research on fossilized fish from the late Devonian period, roughly 375 million years ago, details the evolution of fins as they began to transition into limbs fit for walking on land. The new study by ...

The paddlefish is a surreal giant, with a spatula-shaped nose that some scientists believe it uses to sense the electric fields of its prey, which it sucks up like a whale. You might not think of it ...