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- Sharks are a group of elasmobranch fish123characterized by:
- A cartilaginous skeleton
- Five to seven gill slits on the sides of the head
- Pectoral fins that are not fused to the head
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachimorpha (or Selachii) and are the sister group to the Batoidea (rays and kin).en.wikipedia.org/wiki/SharkSharks are a large group of fish that have inhabited the oceans for over 400 million years, even before dinosaurs populated our planet. They belong to the superorder Selachimorpha, and modern sharks have specific characteristics like a cartilaginous skeleton, five or six pairs of gills and several rows of teeth.www.sharks-world.com/Sharks do not have bones. Sharks use their gills to filter oxygen from the water. They are a special type of fish known as "elasmobranchs", which translates into fish made of cartilaginous tissues— the clear gristly stuff that your ears and nose tip are made of. This category also includes rays, sawfish, and skates.www.fisheries.noaa.gov/feature-story/12-shark-fact…Based on fossilized teeth and scales, scientists believe that sharks have been around for more than 400 million years—long before the dinosaurs. The ocean’s top predators have evolved into roughly 500 species that come in all different sizes and colors and have varying diets and behavior.www.nationalgeographic.com/animals/fish/facts/sh… Shark Facts and Information
Shark Information, Anatomy, Habitat, Feeding, Reproduction and Types of Sharks. Facts about Great White Sharks, Tiger Sharks, Bull Sharks, Whale Sharks, Bull Shark, Hammerhead Shark, Mako Shark and more.
12 Shark Facts That May Surprise You - NOAA Fisheries
Learn about shark anatomy, vision, electroreception, skin, age, color, spots, and more from NOAA Fisheries experts. Discover how sharks differ in size, teeth, an…
Shark | Attacks, Types, & Facts | Britannica
Jan 21, 2025 · Learn about sharks, the cartilaginous fishes of predatory habit that constitute the order Selachii. Find out their description, habits, diversity, threats, and conservation status.
Sharks, explained - National Geographic
Learn about the world's oldest and most diverse fish, with more than 500 species that range in size, color, and diet. Find out how sharks reproduce, why they attack humans, and what threats they face from overfishing and climate change.
All About Sharks: Species, Conservation, & Fun Facts
Nov 19, 2024 · Learn about sharks, their evolution, diversity, ecology, and threats. Explore the different types of sharks, their characteristics, behaviors, and habitats, and discover how to protect them.
Shark Facts | Fish | BBC Earth
May 16, 2024 · Sharks are often characterised as vicious killers, but in reality, they’re a diverse and endangered group of creatures that add tremendous value to marine ecosystems. Despite having a reputation as vicious, bloodthirsty …
Shark Facts: Habitat, Behavior, Diet - ThoughtCo
Dec 13, 2019 · There are several hundred species of sharks, ranging in size from less than eight inches to over 65 feet, and native to every marine environment around the world. These amazing animals have a fierce reputation and …
Shark - Facts, Diet & Habitat Information - Animal Corner
Sharks have different shapes, sizes, colors, fins, teeth, habitats, diets, personality, method of reproduction and other attributes. Some types of shark are very rare (like the Great White Shark and the Megamouth Shark) and some are quite …
Shark | Species | WWF - World Wildlife Fund
Learn about sharks, their diversity, importance and threats from overfishing, demand for fins and bycatch. Find out what WWF is doing to protect sharks and rays and how you can help.
Shark Facts, Types, Classification, Habitat, Diet, …
Sharks are a group of cartilaginous, predatory fish that belong to the subclass Elasmobranchii. Research has shown that they originated more than 400 million years ago. The various shark species that exist today can be easily identified …
Learn our top 10 facts about sharks - WWF
There are over 500 species of shark. 143 of these are under threat, listed by IUCN from vulnerable to critically endangered. 2. Sharks are apex predators. Many have several rows of …
Shark Facts - Woods Hole Oceanographic Institution
What are sharks? Sharks are elasmobranchs, a group of animals that includes rays and skates, whose members have a skeleton made of cartilage, rather than bone, and, unlike most other …
shark - Kids | Britannica Kids | Homework Help
Sharks are fast-swimming fishes that have a skeleton made of cartilage instead of bone. (Cartilage is an elastic tissue that is created before bone begins to form.) They are related to …
Sharks: Facts about some of the ocean's top predators
Jan 21, 2025 · Sharks are found in every ocean on Earth, in habitats ranging from within coral reefs to under Arctic ice. Species like the glowing kitefin shark even live in the ocean's deep...
50 Amazing Shark Facts
Sharks are really amazing creatures. Did you know there are around 500 known species of sharks? Here is a list of fifty amazing facts that are all about sharks! Sharks live in every ocean …
Top 100 Shark Facts - sharkguardian
Want to know more about sharks? Check out our top 100 shark facts below which include wonderful photos and videos! Scroll through the facts or use the category links to narrow your …
100 Fascinating Shark Facts You Must Know
Sharks are some of the most captivating and mysterious creatures that inhabit our oceans. With their sleek bodies, sharp teeth, and ancient lineage, sharks have captured the imagination of …
51 Interesting Facts About Sharks - The Fact File
May 5, 2023 · Facts about sharks: sharks can go through 30,000 teeth over a lifetime. Sharks have a reputation for being solitary hunters, but they often form groups to overwhelm prey …
Sharks Facts and Information | United Parks & Resorts
Sharks live all over the world, from warm, tropical lagoons to polar seas. Some even inhabit freshwater lakes and rivers! Sharks are fishes. Like other fishes, sharks are cold-blooded, …
19 Fascinating (and Reassuring) Facts About Sharks - MSN
Read on to learn some eye-opening shark facts (just in time for Shark Week!). Female sharks have thicker skin During the mating process, male sharks bite into the female to assume the …
List of sharks - Wikipedia
Identification of the 8 extant shark orders. Shark is the naming term of all members of Selachimorpha suborder in the subclass Elasmobranchii, in the class Chondrichthyes.The …
Basking Shark – Discover Fishes - Florida Museum
3 days ago · Limited information is available on the reproduction of the basking shark. Only one female carrying an embryo has ever been recorded. This shark was said to have given birth to …
Smalltail Shark Status Review Report | National Oceanic and …
Description: This information product is a report on the status of the smalltail shark species and includes review of life history, abundance, and fisheries.An assessment of threats, …
Super Senses: How White Sharks Navigate Their World
Apr 16, 2019 · Tiger Shark on OCEARCH Tracker Travels More Than 4,000 Miles, Confirms Transoceanic Abilities May 14, 2020; ... The data, tracks, images and related information on …
Teenager Known for Lifesaving Skills Is Killed in Shark Attack in ...
1 day ago · A teenage girl died on Monday after being bitten by a shark while swimming at a popular beach in Queensland on Australia’s eastern coast, according to the authorities.
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