The below mentioned article provides short notes on Class Chondrichtyes. 1. The fishes of this class bear cartilaginous endoskeleton. They are cold blooded (poikilothermous or ectothermic). There are about 600 species of cartilaginous fishes. 2. The skin is tough, containing minute placoid scales, which are dermal in origin. 3. Except in the Chimaeras, the gills are not covered by an [...]
The upcoming discussion will update you about the difference between Large Bats and Small Bats. Difference # Large Bats (Flying Fox): 1. Large bats are Frugivorous (fruit eating). 2. Head of large bats are fox-like and snout are elongated. 3. Pinna of large bats is small, simple and without ear lets. 4. First and second fingers of large bats are [...]
The upcoming discussion will update you about the differences between Lamprey and Hagfish. Difference # Lamprey (Petromyzon): 1. Lamprey is mostly marine as well as fresh water. 2. It has both parasitic and nonparasitic species. 3. Lamprey sucks out blood of host fishes in feeding. 4. Lamprey breeds marine form migrates to fresh water river and stream for spawning (anadromous). [...]