Episode 2987
Goblin shark
Wed, 2025-Jul-09 00:39 UTC
Length - 2:28
Direct Link
Welcome to featured Wiki of the Day, your daily dose of knowledge from Wikipedia's finest articles.
The featured article for Wednesday, 9 July 2025, is Goblin shark.
The goblin shark (Mitsukurina owstoni) is a rare species of deep-sea shark. Sometimes called a "living fossil", it is the only extant representative of the family Mitsukurinidae, a lineage some 125 million years old. This pink-skinned animal has a distinctive profile with an elongated, flat snout, and highly protrusible jaws containing prominent nail-like teeth. It is usually between 3 and 4 m (10 and 13 ft) long when mature, though it can grow considerably larger such as one captured in 2000 that is thought to have measured 6 m (20 ft). Goblin sharks are benthopelagic creatures that inhabit upper continental slopes, submarine canyons, and seamounts throughout the world at depths greater than 100 m (330 ft), with adults found deeper than juveniles. Some researchers believed that these sharks could also dive to depths of up to 1,300 m (4,270 ft), for short periods of time. However, footage captured in 2024 suggests that their range could be deeper than previously thought, with a confirmed sighting of an adult swimming at 2,000 m (6,560 ft).
Various anatomical features of the goblin shark, such as its flabby body and small fins, suggest that it is sluggish in nature. This species hunts for teleost fishes, cephalopods, and crustaceans near the sea floor and in the middle of the water column. Its long snout is covered with ampullae of Lorenzini that sense minute electric fields produced by nearby prey, which it can snatch up by rapidly extending its jaws. Small numbers of goblin sharks are unintentionally caught by deepwater fisheries. The International Union for Conservation of Nature (IUCN) has assessed it as Least Concern, despite its rarity, citing its wide distribution and low incidence of capture.
This recording reflects the Wikipedia text as of 00:39 UTC on Wednesday, 9 July 2025.
For the full current version of the article, see Goblin shark on Wikipedia.
This podcast uses content from Wikipedia under the Creative Commons Attribution-ShareAlike License.
Visit our archives at wikioftheday.com and subscribe to stay updated on new episodes.
Follow us on Mastodon at @wikioftheday@masto.ai.
Also check out Curmudgeon's Corner, a current events podcast.
Until next time, I'm standard Matthew.
|
|
