Dein Suchergebnis zum Thema: danger

In a new study published in PNAS, researchers have extracted the first ancient DNA from Caribbean parrots, which they compared with genetic sequences from modern birds. Working with fossils and archaeological specimens, they showed that two species thought to be endemic to particular islands were on
They’re one of the only native parrots in the region not in imminent danger of

Myliobatis tenuicaudatus This rather small and incredibly shy ray was made famous over the accidental death of celebrity Steve Irwin. They only grow to almost 4 feet wide and are quick to retreat when humans approach, but they have long venomous stinging spines at the base of their whip-like tail
Danger to Humans The Australian bull ray is considered venomous due to its stinging

Negaprion acutidens This shy, sedate shark isn’t much of a threat to humans unless provoked. It can get quite large though, upward of 14 feet long, and it closely resembles its sister species the Lemon Shark, except for the slightly more exaggerated curve of its pectoral fins. Typically yellowish
Photo © Becky Kelly Danger to Humans This species is quite shy when approached

Leucoraja ocellata These somewhat nocturnal skates have rounded snouts and lobed pectoral and pelvic fins, all light brown and covered in dark spots on top, and white with brownish blotches underneath. They reside in the northwestern Atlantic coastal region, generally in shallows to 300 feet d
Danger to Humans This skate is considered harmless to humans.

Hexanchus nakamurai This slender deep-water shark has a small dorsal fin far along its back, large reflective green eyes, and six gill slits rather than the usual five that most sharks have. It is usually dark to light gray on top, fading to white underneath, and usually grows to from 5.5 to unde
Danger to Humans This shark is not considered dangerous to humans primarily due

Hypanus say This medium sized stingray (growing to 39 inches wide at most) has the classic rounded diamond shaped disc but a distinctively blunt snout, with a tail one and a half times its body length bearing a serrated venomous spine. It is yellowish to light gray on top, with a white or gray un
Danger to Humans The bluntnose stingray is non-aggressive and poses little threat

Rhizoprionodon acutus This small requiem shark has the typical coloring of grey on top and white underneath, and grows to a slender 5 to 5.5 feet long. It has a distinctly pointed snout and large eyes. It is an abundant in-shore shark that is popular for subsistence and commercial fishing. Despit
Danger to Humans The milk shark is harmless to humans due to its small size and

Echinorhinus brucus This short, stout shark is suited to its life as a deep-sea dweller. It lacks the classic prominent ’shark‘ dorsal fin, having two small dorsal fins placed far back on its body, and most of its other fins are small and set back, including an asymmetrical caudal (tail) fin. Is
Danger to Humans The bramble shark is harmless to humans.

Histrio histrio This odd fish is named after the sargassum sea grass beds it camouflages itself in. The color can change rapidly to match its surroundings. It is a voracious hunter and will eat other sargassumfish. Sitting very still, the sargassumfish ‚fishes‘ with its rod-like illium topped wit
Danger to Humans There have been reports of ciguatera poisoning from dealing with

Regalecus glesne This unusual fish is possibly a source for sea monster legends as its ribbon-like body can grow to 36 feet long in some cases. The long, flat, tapering body is reflective silver with a dorsal fin running the length of it that it uses to swim and turn with. Its abrupt, slightly co
Danger to Humans A close relative of the oarfish, the streamer fish (Agrostichthys