![]() ![]() Death occurs through respiratory arrest and circulatory failure. The more the prey struggles, the tighter the coiling will become, until the victim becomes unconscious. They attack at any time of day, restraining their prey using their needle-sharp, curved teeth for a secure grip while killing it by constriction. Their body pattern provides effective camouflage, allowing a submerged anaconda to be virtually invisible from a short distance away. Green anacondas rely on stealth and ambush techniques as they hunt. However, females show increased postpartum feeding rates to recover from their reproductive investment. Large anacondas can go weeks to months without food after eating a large meal, because of their low metabolism. Occasionally, female green anacondas will feed on males. ![]() Some also feed on carrion and conspecifics, usually inside or around water. Green anacondas take a high risk by feeding on larger prey, which occasionally lead to serious injuries or even death. A few examples of their prey include broad-snouted caimans ( Caiman latirostris), wattled jacanas ( Jacana jacana), capybaras ( Hydrochoerus hydrochaeris), red-rumped agoutis ( Dasyprocta leporine), collared peccaries ( Pecari tajacu), South American tapirs ( Tapirus terrestris), red side-necked turtles ( Rhinemys rufipes), and northern pudús Pudu mephistophiles. Green anacondas in both habitats have been found to feed on large prey, usually ranging from 14% to 50% of its own mass. Prey availability varies more in grasslands than in river basins. As they develop, their diet becomes increasingly complex. Juvenile anacondas feed on prey such as small birds and juvenile caiman that are typically 40-70 grams in size. Their diet includes various aquatic and terrestrial vertebrates such as fish, reptiles, amphibians, birds, and mammals. Green anacondas are opportunistic apex predators, feeding on any prey that they can kill and swallow.
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