Weird Animals
f.Revealing a giant 550-pound fish camouflaged underwater in the Amazon forest (Video).f
A species of fish known as the Pacific reed has about 555 teeth, and a new study shows that these fish shed their teeth at an astonishing rate, about 20 a day.
“Every bony surface in their mouth is covered with teeth,” said senior author Karly Cohen, a doctoral student in biology at the University of Washington in the US.
The Pacific reedfish (Ophiodon elongatus) is a predatory fish found in the northern Pacific Ocean. It is 50 cm long at maturity, but some fish reach 1.5 m.
Instead of incisors, molars, and fangs, these fish have hundreds of sharp, almost microscopic teeth on their jaws. Their hard palate is also covered with hundreds of small toothed stalactites. And behind one set of jaws is another set of extra jaws, called pharyngeal jaws, which fish use to chew food the same way humans use molars.
The mouth of the Pacific reed fish is relatively normal for a bony fish.
Cohen and lead author of the study Emily Carr, a student at the University of South Florida, kept 20 Pacific relic fish in tanks at the University of Washington lab.
Since the teeth of Pacific reed fish are very small, it is not easy to find out how quickly these fish lose their teeth.
The researchers placed the reishi in a tank filled with a dilute red dye, which reddens the fish’s teeth. The researchers then transferred the fish to a tank filled with fluorescent green dye to stain the teeth again.
Then, Carr placed the tooth bones under a microscope in a dark lab and calculated the ratio between the small red teeth and the tiny blue teeth on all the toothed bones in the mouth of the Thai Binh reishi. Positive. In total, she counted more than 10,000 teeth on all 20 fish in captivity.
They found that the fish shed an average of about 20 teeth per day, Carr said.
-
Weird Animals17h ago
b83.Kylie Jenner’s Mega Mansion Takes Shape: Sprawling Hidden Hills Estate on $15 Million Plot Gets New Roof Amid Ongoing Construction
-
Weird Animals17h ago
nht.Unveiling the Enigma: The Mysterious Photograph of 1907 Featuring a Woman Holding an Alien Creature
-
Weird Animals23h ago
nht.Breaking: Evidence Unveiled: Humans Coexisting with ‘Bigfoot’ Since the 1820s, Captured in Historic Photo.
-
Weird Animals23h ago
b83.”Tom Brady Enhances $17M Miami Mega-Mansion: Private Boat Dock, Pickleball Court, and Vegetable Patch Added to Luxurious Creek Island Residence”
-
Weird Animals1d ago
b83.”A Palace Fit for a Prince of Bel-Air: Inside the Stunning $38 Million Mega Mansion in Los Angeles Featuring a Cinema, Infinity Pool, Huge Glass-Walled Wine Cellar, and a Two-Ton Stone Bathtub”
-
Weird Animals1d ago
b83.”The Quarter Billion Dollar Home: ‘Royal-Style’ 69,000 Sq Ft Mega-Mansion with Gold Fittings and Only Four Bedrooms Listed for Over $250 Million in Israel by Elusive Russian Billionaire Valery Kogan”
-
Weird Animals1d ago
nht.Uпprecedeпted archeology: Archaeological sites accideпtally υпearthed maпy hυmaп boпes aпd two giaпt dragoп skeletoпs iп Mexico.
-
Weird Animals1d ago
nht.”The Climax Event: Alien Appearances in the 1990s”