Why in news?

• An extremely rare and critically endangered sawfish was caught in fishing nets in Karnataka.
• Sawfish have a long-flattened head and body and an elongated snout, much like that of the saw shark, that forms a long flat blade edged with strong teeth.
• Habitat: shallow water in subtropical and tropical regions of the world. They are bottom dwellers.
• Sawfishes are ovoviviparous fishes (that is, fertilized eggs grow within the body of female sawfishes, and the young are born alive).
• Conservation Status (as per IUCN):
• Large tooth sawfish: Critically Endangered
• Dwarf Saw Fish: Endangered
• Green Sawfish: Critically Endangered
• Smalltooth Sawfish: Critically Endangered
• Narrow Sawfish: Endangered