The Bermuda Triangle is a colloquial, loosely defined region in the western North Atlantic, not a scientifically recognized geographic or ecological zone. Its boundaries vary; it has no unique physical, chemical, or biological properties.
The area hosts typical western Atlantic marine life: fish, cetaceans, sea turtles, seabirds, plankton. No species are endemic to it. Disappearance rates for ships/planes are statistically normal for a heavily trafficked, hurricane-prone area.
The "mystery" is a media construct, not a biological reality.