Do sharks have tongues? Sharks have a tongue referred to as a basihyal. The basihyal is a small, thick piece of cartilage located on the floor of the mouth of sharks and other fishes. It appears to be useless for most sharks with the exception of the cookiecutter shark.
In sharks, the tongue is a small, flattened structure that is attached to the floor of the mouth. It is made of cartilage, just like the rest of the shark's skeleton, and it is covered with tiny, tooth-like structures known as papillae. These papillae help the shark to grip and manipulate food in its mouth.
Taste sensations
Other animals naturally have no tongues, such as sea stars, sea urchins and other echinoderms, as well as crustaceans, says Chris Mah via email. Mah is a marine invertebrate zoologist at the Smithsonian National Museum of Natural History and has discovered numerous species of sea stars.
Yes, most fish do have tongues, but they aren't at all like ours. Most fish have a bony structure called the basihyal on the floor of the mouth that superficially resembles a tongue. But it doesn't have taste buds, isn't muscular and has very little range of motion, so it isn't directly equivalent.
Circulatory System
A shark's heart is a two-chambered S-shaped tube, small in proportion to body size. Blood flows from the heart to the gills and then to body tissues.
From timber wolves to tiger sharks, most vertebrate animals have crimson blood in their veins. This hue is produced by hemoglobin, the protein that helps our blood distribute oxygen.
A shark's sense of smell is powerful – it allows them to find prey from hundreds of yards away. Menstrual blood in the water could be detected by a shark, just like any urine or other bodily fluids. However, there is no positive evidence that menstruation is a factor in shark bites.
Spiders do not have tongues. Have you ever taken a closer look at spiders and their body parts? They don't possess tongues the way humans do, so they use other methods to consume food. Instead of tongues, they taste their meals with their legs and swallow them with suction created by their stomachs.
Yes they do! But why? Well, like most living things, fish too produce waste from their metabolic processes. Peeing is one way of doing that and is referred to as excretion.
They don't have anything that looks like a vertebrate tongue, but they definitely have a structure that is analogous. If you examine this photograph closely, you can see the pale tube-like structure under the mandibles (jaws) at the front of the head. It the “tongue” and it isn't spectacular from our point of view.
Answer and Explanation: Dolphins are the animal that has the poorest sense of smell. This is because dolphins have no sense of smell at all since they lack the nerves that take smell information from the nose to the brain.
Neurobiologists have long recognized that fish have nervous systems that comprehend and respond to pain. Fish, like “higher vertebrates,” have neurotransmitters such as endorphins that relieve suffering—the only reason for their nervous systems to produce these painkillers is to alleviate pain.
Yes, frog tongues are uniquely sticky (and their saliva makeup is crucial in bug capture), but they're also very soft—10 times softer than human tongues and one of the softest known biological materials. That softness makes frog tongues more like adhesive shock absorbers than scotch tape, the researchers suggest.
For example, sharks have two penises, sort of. Known as claspers, these two reproductive organs are only on male sharks and they act as the channel for the semen to enter the female's cloaca during mating. The clasper essentially latches on to the female to facilitate reproduction.
Some sharks such as the nurse shark have spiracles that force water across their gills allowing for stationary rest. Sharks do not sleep like humans do, but instead have active and restful periods.
Their tongues are not free, but held in place by a membrane that limits movement; as a result, crocodiles are unable to stick out their tongues. Crocodiles have smooth skin on their bellies and sides, while their dorsal surfaces are armoured with large osteoderms.
Fish have gills that allow them to “breathe” oxygen dissolved in the water. Water enters the mouth, passes over the gills, and exits the body through a special opening. This keeps an adequate amount of water in their bodies and they don't feel thirsty.
While fish do not sleep in the same way that land mammals sleep, most fish do rest. Research shows that fish may reduce their activity and metabolism while remaining alert to danger. Some fish float in place, some wedge themselves into a secure spot in the mud or coral, and some even locate a suitable nest.
Yes, fish experience both physical and emotional pain. Scientists say that it's likely a different type than what humans experience, but it's pain nonetheless. Fish have nerve cell endings called nociceptors, which alert their bodies to potential harm such as high temperatures, intense pressure, and harmful chemicals.
Females have two vaginalike receptacles, placed side by side, in which males deposit sperm using two penislike palps.
Spiders do not sleep in the same way that humans do, but like us, they do have daily cycles of activity and rest. Spiders can't close their eyes because they don't have eyelids but they reduce their activity levels and lower their metabolic rate to conserve energy.
“Surprisingly, we found that they also possess an acute sense of hearing,” he said. “They can hear sounds at distances much farther away than previously thought, even though they lack ears with the eardrums typical of most animals with long-distance hearing.”
Great news! A recent study in the journal Ethology reveals that men can detect from a woman's voice whether she is menstruating. Psychologists Nathan Pipitone from Adams State College and Gordon Gallup from SUNY Albany recorded 10 women counting from one to five, at four different points in their menstrual cycles.
Made of very strong and thick bone, dolphin snouts are biological battering rams. Dolphins will position themselves several yards under a shark and burst upwards jabbing their snout into the soft underbelly of the shark causing serious internal injuries. More than Peas in a Pod.