Resemblances between swifts and swallows are due to convergent evolution, reflecting similar life styles based on catching insects in flight. The family name, Apodidae, is derived from the Greek á¼ÏÎ¿ÏÏ (Ã¡pous), meaning footless, a reference to the small, weak legs of these most aerial of birds.
Does Saturn have an atmosphere and what does it consist? The planet Saturn does have an atmosphere, and indeed, it consists mostly of atmosphere. The main chemical constituents of the atmosphere of Saturn are methane, ammonia, and hâ¦ydrogen. 5 people found this useful.
Saturnâs Moons. Saturn has at least 62 moons, ranging in size from only a kilometer or less across, to the largest moon in the solar system, Titan, which is larger than the planet Mercury! Several of these moons have features that make them of interest to astrobiologists. Titan is the only moon in the solar system that has a significant atmosphere.