So, the correct answer is 'Birds'. Was this answer helpful?
Several groups of mammals have decided to do without teeth altogether. The 10 species of Whales in the order Mysticeti, the 8 species of Pangolins family Manidae, and the 3 species of Anteaters in the family Myrmecophagidae and order Edentata have all given up on teeth completely and have none.
Sea horses, pipefish, and adult sturgeon have no teeth of any type. In fish, Hox gene expression regulates mechanisms for tooth initiation. While both sharks and bony fish continuously produce new teeth throughout their lives, they do so via different mechanism.
Giraffes have no upper front teeth.
Flatworms, nematodes, and cnidarians (jellyfish, sea anemones, and corals) do not have a circulatory system and thus do not have blood.
Reptile Teeth
Reptiles are a very large and diverse group of animals, and this means that there is a diverse array of teeth that we find in the reptile class. Some of the reptiles have teeth that will be replaced when lost, and some only get a single set of teeth to get them through life.
Some have tiny teeth on their upper jaws and the roof of their mouths while others sport fanglike structures. Some species are completely toothless. And only one frog, out of the more-than 7,000 species, has true teeth on both upper and lower jaws.
Although most snakes have teeth, four rows on the top and two on the bottom, not all snakes have fangs. Only the poisonous ones do. Fangs are sharp, long, hollow or grooved teeth that are connected to a small sac in the snake's head behind its eyes. These sacs produce a poisonous liquid called venom.
Snails have more teeth than any animal.
This is TRUE. A snail's mouth is no larger than the head of a pin, but can have over 25,000 teeth (but these aren't like regular teeth, they are on its tongue).
Spiders have no teeth and rely on the venom to liquefy their prey in order that their stomachs, known as sucking stomachs, can draw in the meal.
Birds, like this Bald Eagle, don't have teeth, but they do have other adaptations to help them break down food.
Yes, ants have teeth, as anyone who has ever stepped on an ant mound can attest. These specialized structures, technically called “mandibular teeth” because they are attached outside of their mouths, are made of a network of material that tightly binds individual atoms of zinc.
because octopuses don't have any teeth! That doesn't mean that an octopus can't bite and chew its food, which is good news for this meat-eating carnivore. Instead of teeth, octopuses have sharp beaks. They use them to break open things like clam and lobster shells so that they can tear out and eat the yummy insides.
teeth! Not really, but a strong muscle known as the gizzard does the work of teeth for chickens by grinding down any remaining large food particles with the assistance of grit. Grit can be small stones, granite, oyster shells, or sand consumed by a chicken.
They have a bill and a tongue, but no teeth. First of all, penguins have a beak, with a pointy end to help them to grab their food, typically fish. The other outstanding feature of their mouth is the spikes on their tongues and the rooves of their mouths, that look like stalagmites and stalactites in a cave.
For example, most fish that eat other fish (carnivores) have teeth that are designed to puncture, hold on to, and cut their prey whereas most fish that eat plants (herbivores) have teeth that are more suited for shredding things such as algae.
The teeth of lizards have varied functions depending on the species. In some lizards, they aid in the grinding of coarse food material before passing to the stomach. Other lizards rely on their teeth to tear or break larger pieces of food into smaller pieces that are then swallowed whole.
Burmese pythons have between 80 and 120 teeth spread out into multiple rows. Unlike humans, who have only two rows of teeth, Burmese pythons have two on their top jaws and one on their bottom jaw. Having this many allows them to truly lock their prey in their jaws without much of a chance for survival.
Butterflies – which come from caterpillars – don't have any teeth at all. Instead of chewing up the landscape, butterflies sip nutrition through their straw-like tongues, which are known as proboscis. Teeth aren't necessary at this point in the butterfly's life.
So, do ducks have teeth? No — in fact, no birds do! Hence the old saying “scarce as hen's teeth.” Bird mouths are very different from those of other vertebrates.
The Mexican axolotl is an extant amphibian with teeth assembled into dental arcades located in oral and palatal regions.
But unlike cows, turtles don't have any teeth at all! Like a bird, they have a beak. With their strong jaw muscles and hard beaks, carnivorous turtles crush the shells of their prey – crabs, sea urchins and clams, for example. Baby turtles have something called an egg-tooth, or caruncle, but it's not really a tooth.
Reptile teeth shape are still species specific, but there are generalities — like all vertebrate teeth have a crown and a root. Few exceptions do exist such as turtles and tortoises, who are the only toothless reptiles.
Most frogs have short, pointed teeth for gripping prey. But "true toads" in the family Bufonidae have no teeth at all. These bold predators catch prey with their sticky tongues and swallow it alive. Some large toads eat almost anything they can fit in their mouths, including mice, birds, snakes, and other frogs.