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- Extinction: Time is running out to save sharks and rays - BBC
Scientists say sharks and rays are disappearing from the world's oceans at an "alarming" rate The number of sharks found in the open oceans has plunged by 71% over half a century, mainly due to
- Shark Reproduction - The Shark Trust
Shark News from around the world Press Releases 2025 Shark Trust press releases in 2025 Related Shark Evolution Most scientists believe that sharks came into existence around 400 million years ago That's 200 million years before the dinosaurs! Find out more about the history of sharks Shark Taxonomy
- THE GLOBAL WHITE SHARK PROJECT - Ocearch
With rapid population declines over the past 30 – 40 years, shark and ray species are particularly threatened with nearly ⅓ of these species fished close to the level of extinction It is a signal of the overall declining health of this ecosystem and it’s crucial to help there now before it’s too late
- Chondrichthyan - Cartilaginous, Sharks, Rays | Britannica
Chondrichthyan - Cartilaginous, Sharks, Rays: The classification of chondrichthyans is a somewhat controversial subject Many sharks, skates, and rays are difficult subjects for taxonomic study The taxonomic review provides principal identifying characteristics of all major extant groups Class Chondrichthyes contains the subclasses Elasmobranchii (sharks and rays) and Holocephali (chimaeras
- Shark Species In Depth – Discover Fishes - Florida Museum
There are 8 shark species profiles included in this activity with information on size, color, diet, and habitat of each shark Focus is on sharks that live in waters off the Florida coast although sharks from other parts of the world are also included: 1 Bull shark 2 White shark 3 Tiger shark 4 Great hammerhead shark 5 Shortfin mako
- How does overfishing affect sharks and rays? - Save Our Seas . . .
While we may associate fishing with bony fish like salmon and cod, there are shark and ray (elasmobranchs) fisheries around the world These species are directly targeted for numerous reasons Sharks’ meat is an increasingly popular source of protein that is sold in the USA, Europe, Japan and Australia
- The Ocean’s Largest Shark Has a Little Something to Say
Here’s the thing about the sharks: as a general rule, they don’t make sounds Across sharks’ 400-500 species, no one has ever found an organ even capable of making sound
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