How big do speartooth sharks get?
Largest Speartooth shark found was that of a female with a length of 175cm. The large sets of jaws were examined and indicate that the size can go up to up to 2m and possibly 3m. The Speartooth sharks give birth to live young. Their size at birth is estimated to be 59cm.
How many speartooth sharks are there?
2500 speartooth sharks
The IUCN estimates that there are, at most, just 2500 speartooth sharks left in the world. They’ve been found in tropical river systems in Australia and Papua New Guinea, but very little else is known about where they live out their lives as adults and, therefore, what threats they are facing.
Do speartooth sharks have sharp teeth?
Speartooth shark has 26 to 29 rows of teeth in the upper jaw and 27 to 29 rows of teeth in the lower jaw. Teeth in the upper jaw are wide, triangular and serrated on the edges. Teeth in the lower jaw are narrow, serrated only near the tips and spear-shaped, hence the name – speartooth shark.
How many speartooth sharks are left?
How many speartooth sharks are there in the world? Currently, studies have shown that there are approximately 2500 speartooth sharks present in the world. Even this small population is on the decline with the rampant commercial fishing and habitat degradation.
Where do Speartooth sharks live?
northern Australia
The speartooth shark (Glyphis glyphis) is a rare species of river shark, belonging to the family Carcharhinidae. It inhabits coastal marine waters and tidal reaches of large tropical rivers in northern Australia and New Guinea.
Are River Sharks real?
Other than the bull shark, there are at least five species of “river sharks” in the genus Glyphis which have been observed in freshwater rivers in South and Southeast Asia and Australia, but they are extremely rare due to habitat degradation and little is known about them.
Why are Speartooth shark endangered?
The Speartooth Shark is a rare and critically endangered species of river shark, calling home large tropical rivers in northern Australia. To its detriment, the Speartooth is restricted due to its stringent habitat requirements and so the remaining population of these sharks is now considered small.
What body of water has the most sharks?
New Smyrna Beach, Florida Florida has more shark attacks each year than any other area in the world, according to the International Shark Attack File (ISAF).