Class: Reptilia (Reptile)
Order: Squamata
Family: Elapidae
Genera:
• Naja (true cobras)
• Ophiophagus (king cobra)
Species: 21
Body length: longest— king cobra Ophiophagus hannah up to 18.5 feet (5.7 meters); most range from 3 to 7 feet (0.9 to 2.1 meters)
Weight: up to 20 pounds (9 kilograms), depending on species
Life span: 20 to 30 years
Incubation: 45 to 80 days, depending on species
Number of eggs laid: 12 to 60, depending on species
Length at hatch: 16 to 18 inches (40 to 45 centimeters)
Age of maturity: 4 to 6 years
Conservation status: No species are endangered but their numbers have been reduced by the loss of habitat in some parts of their range.