Colossal Squid

Source:  BBC

Context: For the first time in over a century, a juvenile colossal squid was filmed alive in its natural habitat at a depth of 600 meters in the Southern Ocean, marking a historic milestone in marine exploration.

About Colossal Squid:

  • What it is?
    • The colossal squid is the largest invertebrate species known, a massive deep-sea predator rarely observed in its natural habitat.
  • Scientific Name: Mesonychoteuthis hamiltoni.
  • Category: It belongs to the class Cephalopoda, which includes octopuses, cuttlefish, and other squids.
  • Habitat: It resides in the deep, cold waters of the Southern Ocean, particularly around Antarctica.
  • Key Features:
    • Physical: It can grow up to 14 meters (46 feet) in length and weigh up to 500 kilograms (1100 pounds), with the largest eyes in the animal kingdom.
    • Biological: Females are larger than males. Their tentacles are equipped with sharp, rotating hooks adapted for predation and defense.
    • Food Habits: It preys on large fish like the Patagonian toothfish, other squids, and occasionally battles with sperm whales.
    • Reproduction: Specific mating behavior is unknown; however, it reproduces through internal fertilization. Juveniles are transparent and grow darker with maturity.