Facts about Sixgill Chimaera
- 08
Eggs of sixgill chimaeras are encased in leathery capsules that take approximately 3.5 years to hatch, representing one of the longest embryonic development periods among fish species.
- 07
Sixgill chimaeras possess a large liver comprising up to 25 percent of their body mass, providing crucial energy storage for their slow metabolism in extreme deep-sea environments.
- 06
Sixgill chimaeras possess a pair of tooth plates that continuously grow throughout their lifetime, requiring them to process food with increasingly larger grinding surfaces as they age.
- 05
Females of this species can reach reproductive maturity only after 30 to 40 years of life, making breeding extremely slow in deep-sea populations.
- 04
Sixgill chimaeras possess a specialized rostral organ on their snout containing electroreceptive ampullae that detect electrical fields as weak as 5 nanovolts per centimeter to locate prey in complete darkness.
- 03
Sixgill chimaeras can live over 80 years, making them among the longest-lived fish species despite their deep-sea habitat at depths reaching 2,600 meters.
- 02
In 2020, researchers discovered that sixgill chimaeras possess photophores along their bodies that produce bioluminescence to communicate in darkness at depths exceeding 2,000 meters.
- 01
The sixgill chimaera possesses a venomous spine on its dorsal fin that can inject toxin into predators or threats in deep ocean waters below 200 meters.