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.
Titan is the only known moon with a significant atmosphere, the only nitrogen-rich dense atmosphere in the Solar System aside from Earth's. Observations of it made in 2004 by Cassini suggest that Titan is a super rotator, like Venus, with an atmosphere that rotates much faster than its surface.