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feathery external gills in a sentence

1. At hatching, a typical salamander larva has eyes without lids, teeth in both upper and lower jaws, three pairs of feathery external gills, a somewhat laterally flattened body and a long tail with dorsal and ventral fins.

2. Instead of internal gills, they develop three feathery external gills that grow from the outer surface of the gill arches.

3. Whereas damselfly nymphs have three feathery external gills, dragonfly nymphs have internal gills, located around the fourth and fifth abdominal segments.

4. Fossil tadpoles from several species are known, as are neotenic adults with feathery external gills similar to those found in modern lissamphibian tadpoles and in the fry of lungfish and bichirs.

5. At the same time, he found normally developing aquatic larvae with their three characteristic feathery external gills on each side of their heads and camouflage blending into the pond's substrate.

6. The larvae, which resemble fish fry but are distinguished by their feathery external gills, hatch out in about three weeks.

7. This condition, called neoteny, means it keeps its tadpole-like dorsal fin, which runs almost the length of its body, and its feathery external gills, which protrude from the back of its wide head.