Japanese marine biologists came across a rare frilled shark, which was sick and had moved to shallow waters. These sharks are considered “living fossils” as they haven’t changed much for millions of years. They usually live around 2000-3000 feet deep, and this is the first time a live one has been caught on tape since being discovered in the 19th century.
Observation: this is the second very rare, undocumented sea creature that Japanese scientists have videotaped, along with the Giant Squid a few weeks ago.
An interesting factiod:
Reproduction is not well understood, but like many other sharks they bear live young (ovoviviparous), with litter sizes of 2 to 12 pups. Compagno states “They are pregnant for a long time, probably one to two years”. This would give the frilled shark the possibility of having the longest gestation of any vertebrate, even exceeding the elephant’s period of 22 months.