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Dolphins and Porpoises

Considered not a fish, dolphins and porpoises belong to the group of toothed whales that have skin, not scales. The significant difference between them is that dolphins have a beak, a melon-shaped head and a dorsal, while porpoises have none.

3,460 Questions

How many breaths a minute should an 8 year old take while resting?

An 8-year-old child typically takes around 15-30 breaths per minute while resting. If you notice any rapid breathing or signs of respiratory distress, it's best to consult a healthcare provider.

What sense is most valuable to a dolphin?

Hearing is the most valuable sense to a dolphin, as they use echolocation to navigate, communicate, and locate prey in the ocean.

What is a dolphin's impact on the environment?

Dolphins play a role in maintaining the balance of their marine ecosystems by preying on fish to control their population and helping to keep the food web in check. They also serve as indicators of ocean health, as their well-being can reflect the overall health of their environment. However, human activities such as pollution, habitat destruction, and overfishing pose significant threats to dolphin populations and can disrupt the balance of their ecosystems.

What are some Dolphin Instincts?

Dolphins have instincts for survival, such as seeking food, avoiding predators, and caring for their young. They also have a strong instinct for social interaction, forming tight-knit bonds with other dolphins in their pod to work together and protect each other. Additionally, dolphins have an instinct for navigation, using echolocation and magnetic fields to help them find their way in the ocean.

Do dolphins hunt in pods?

Bottlenose dolphins appear to sometimes work in groups to herd and catch fish and other prey. They organise themselves in wide groups, rather than concentrated groups. Herding may involve the group circling the smaller fish whilst one dolphin at a time takes its turn to go in and feed, or it may involve herding them up onto a sandbank or reef. Sometimes, a couple of the dolphins in the group, or pod, will dive beneath a school of fish, virtually pushing them upward to the rest of the dolphins waiting to feed. They have even been observed hitting the fish with their tails to temporarily stun them.

Bottlenose dolphins will not eat all the resources in one area, but always leave some and move on to new feeding grounds.
Bottlenose dolphins eat many kinds of fish, squid, shrimp and small rays and sharks. ~Quoted from the answer to a similar question: "How does a bottlenose dolphin get its food?"

Why do remoras and sharks live together?

Sharks and remoras don't really live together. Remoras are suckerfish. Remoras just attach themselves to the sharks. When sharks catch their pray, The remora who is attached to the shark eats the leftovers. Sometimes remoras attach themselves to scuba divers.

What are three ways to feed a dolphin?

First, throw a piece of food into the water, so the dolphin could indulge on its own. Or, hand feed it, gently put the morsel into the dolphin's mouth. At last, you could put food down a syringe and connect it to the dolphin's mouth, so in case the dolphin is sick or a young it can eat the food slowly.

What kind of ecosystem does a dolphin live in?

Dolphins primarily live in marine ecosystems, such as oceans, seas, and sometimes estuaries. They are often found in tropical and temperate waters, where there is an abundant supply of food and suitable habitat for them to thrive. Dolphins are highly social animals and are known to form complex communities within their ecosystems.

Does a male dolphin take care of his calf?

Male dolphins typically do not take a direct role in calf care. It is the female dolphins, including other female members of the pod, that are primarily responsible for raising and caring for the calves, while males may provide protection to the group as a whole.

What is the fastest dolphin?

The common dolphin (delphinus delphis) holds the title as the fastest dolphin, reaching speeds of up to 60 km/h (37 mph).

Blue whales structural adaptations?

Structural: Streamlined for swimming, blowhole on the dorsal side for ease in breathing, elongated tail (flippers are actually fused hind limbs) for extra power/force in swimming, grooved throat (gullet) for increased volume of seawater for straining

Physiological: whales have high concentrations of myoglobin in their blood (holds more oxygen than hemoglobin)= this makes it easier for whales to stay down longer; myoglobin also compresses easier to combat the high pressures of the deep sea, whales have thick layers of blubber to insulate them from the cold depths of the sea (cold oceans in general), rather than teeth, blues have baleen plates (keratin filters for krill) used for straining metric tons of krill (and other small marine life) out of the ocean

behavioral: blues use their tongue to push seawater out through baleen plates after their mouths are closed (for filtering), blues always feed in the highest populations of krill (since krill move, this means blues move, following the migrations of krill with currents); females are often larger and will hover over calves to protect their young (pods of blues will keep calves centrally with larger adults on the peripheral edges.

Where is the hourglass dolphin habitat?

Hourglass dolphins are found in the cold waters of the Southern Hemisphere. They typically inhabit regions around the Antarctic Peninsula and the sub-Antarctic islands, where they feed on fish and squid.

What does a spinner dolphin look like?

Spinner dolphins have a distinctive appearance with a long, slender beak, a dark grey back, and a white or light grey underside. They are known for their acrobatic displays, often leaping out of the water and spinning rapidly in mid-air. They also have a distinct tri-color pattern on their bodies, with dark grey, light grey, and white markings.

Where is the hectors dolphins natural habitat?

In a word ...People.Hector's Dolphins are small (4 to 6 feet) and prefer the coastal waters near shore.This makes them susceptible to active trawling-- commercial net fishing where the net is dragged behind a boat, and to gill nets -- a form of fishing where nets are suspended in the water and left unattended. Coastal pollution may also be a factor.The Government of New Zealand has taken steps to help protect Hector's Dolphins but it may be too little too late as only about 25% of their abundance since 1960 survive.30 Years ago there were about 30,000 animals in the wild today there are about 7,000 left.That means that for every 5 dolphins born in the wild the interaction with humans kill about 4.

What do dolphins do for fun?

Dolphins are natural jokesters; they will jump out of the water to create a big splash (what in people would be called a cannonball), deliberately bump other dolphins off course (body check), chat for no reason whatsoever (gossip), swim as fast as they can with no food source nearby (racing, playing tag), and dance for brief periods on top of the water (extreme sports).

How many meters is a dolphin?

A bottlenose dolphin is approximately 2.6-meters long, or 8.5 feet. The largest dolphin, the orca, can grow to lengths of more than 6 meters, or 20 feet.

Is a finless porpoise a carnivore a herbivore an omnivore or a decomposer?

A finless porpoise is a carnivore, as they primarily feed on a diet of fish and squid. They hunt and consume other live animals as their main source of nutrition.

What is the most common species of dolphin?

Atlantic bottlenose dolphin

Bottlenose Dolphins are the most common species of dolphin. Of course, they are the most recognizable and popular dolphin as well. Bottlenose dolphins are likely the dolphin you think of when your hear the word "dolphin".

Who discovered spinner dolphins?

Spinner dolphins were not discovered by a single person, as they have been known to indigenous communities in regions where they are found for centuries. However, in terms of scientific discovery and classification, spinner dolphins were officially identified by scientists in the 19th century.

Can dolphins get cancer?

I would say that all animals through out the evolutionary tree can get it.

I also found out that Dolphins are possibly the only other animal apart from us that can get hpv, but don't develop cervical cancer!

It makes me think maybe the dolphins know something we don't.

How do Spinner dolphins communicate danger to others?

Spinner dolphins communicate danger by emitting acoustic signals, known as whistles or burst-pulse sounds, to alert other group members. These vocalizations convey information about the type and intensity of the threat, allowing group members to coordinate their response and flee if necessary. They may also use body language, such as jumping or tail slapping, to signal danger to others.

Why do Dolphins live in water?

Dolphins live in water because they are well-adapted to their aquatic environment. They have streamlined bodies, fins for swimming, and a blowhole for breathing at the surface. Water provides their main source of food and protection from predators.

Can you hear the ultrasound waves that a bat uses for echolocation?

No, humans cannot hear the ultrasound waves that bats use for echolocation because they are at a frequency greater than what our ears can detect. Bats produce ultrasound waves at frequencies typically ranging from 20 to 200 kHz, well above the audible range for humans (20 Hz to 20 kHz).

How do dolphins protect itself?

Dolphins defend themselves by battering their snouts into the sharks soft underbelly. This can result to killing the shark.
for most dolphins there only preadator is man

  1. First they hide
  2. then they swim away really fast!
  3. LOl