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Last November, Sea World San Diego announced the birth of a male dolphin calf. His mother is a Sadie, a 13-year-old dolphin living in captivity at Sea World San Diego. Seeing a baby dolphin born into captivity isn’t a new thing for amusement parks like Sea World. This little cetacean is actually one of approximately 80 bottlenose dolphins who have born into the captivity industry.

While some might think that this is great news for the world’s dolphin population, there is a huge problem with breeding animals like dolphins and orcas in captivity. Obviously, these animals will never know what life is like in the wild. But they will also never be able to swim freely in open water, hunt or use their natural instincts. They will never get to use their intelligence to its fullest or get the exercise they need. Essentially, these captive offspring will live in a bathtub their entire lives.

In addition to these issues, there are also smaller, but just as harmful, problems involved with captive breeding that many people do not know about.

The Conservation Myth

Many marine parks claim that by breeding these animals in captivity, they are helping to conserve them. The problem, however, is that the animals aren’t being conserved. By being born into captivity, they will never learn the skills necessary to survive in the wild. Effectively, this means that any animal that is born in captivity can never be released into the wild. Conservation should start where these animals already make their homes: in the ocean.

Aggressive Behaviors in Captive Cetceans

Studies have shown that dolphins and orcas in captivity exhibit aggressive behaviors not shown in the wild.

Orcas have been known to charge aggressively at their trainers. At least three trainers have been killed by captive orcas and SeaWorld has had over 100 “incidents” involving captive orcas and staff. In the wild, there have been zero violent interactions between orcas and humans.

Because they are generally docile animals, many marine attractions allow people to interact with dolphins. However, even the most “happy” looking dolphin can be pushed to their limit and bite park attendees.

Orcas and dolphins are incredibly intelligent animals and they are entirely capable of understanding their own suffering and frustration. After years of swimming laps and experiencing mind-numbing boredom, these animals are like tightly wound springs.

Abandoning Their Young

Captive cetaceans don’t just exhibit aggressive behaviors toward humans, but they even turn against members of their species and even their young. When these dolphins and orcas are born into captivity, their mothers often reject them, as their natural instincts have been obliterated by captivity. This was a recent event at Brookfield Zoo in Chicago. In December 2014, a seven-day-old male was rejected by his mother and died as a result. This isn’t anything new, either. Go back over the years and you will still find the same rejection happening. In 1998, Taima and Tilikum (yep, that Tilikum) birthed Sumar. When he was three months old, Taima attacked and rejected Suma, causing SeaWorld to ship him off to another facility, away from the only family he knew.

In the wild, orca pods are extremely close and the bond between mother and child is very real. However, captive mothers were never taught how to care for a child and many were torn from their own mothers at a young age, so they have no understanding of what it means to love or be loved.


Like us, dolphins and orcas have developed instincts so they will not inbreed. In the wild, there are options for different mates available to the animals. In captivity, there are very few options and many of those options are relatives, because capturing wild orcas and dolphins for captivity is no longer done in the U.S.

An example of this sort of inbreeding is Katina, the killer whale, who was impregnated by her own son, Taku, in 2006. The calf, Nalani, is the first fully inbred captive orca. As tied turn against the captivity industry in the U.S. we can only anticipate that more marine parks will turn to inbreeding to keep their shows and spectacles alive. But is it really worth the health of tha animals?

Breeding Too Young

For orcas, the average breeding age is around 14 years of age. Businesses trying to make a profit, like SeaWorld, don’t really care about the natural lifecycle of orcas in the wild. As soon as an orca is ready, they will begin to impregnate her. In the past, orcas at SeaWorld have been bred at eight and 10 years old, years before they should be breeding. Again, this is traumatic for the mothers and detrimental to the babies who will ultimately be rejected.


In captivity, calf mortality rates can reach up to 50 percent for calves less than six months old. Premature death is also familiar to the adult animals as well. Their lifespans are cut down at extreme rates, with only two orcas passing 40 years old in captivity. Compare that to the wild, where orcas live between 50 and 80 years and it is pretty clear that life in a prison is no life at all for these complex animals.

What You Can Do

The only reason that marine parks, like SeaWorld, continue to breed animals in captivity is to keep their attractions open. If they were to end breeding animals, they would quickly run out of orcas and dolphins to display. However, as consumers learn more about the physical and mental damage that captivity does to marine species, they are starting to push the industry into oblivion. If there is no longer a demand for orca and dolphin shows and spectacles, then marine parks will have no reason to breed their animals.

Help us stop captive breeding by boycotting marine parks. It is time that we empty the tanks and allowed these sentient beings to stay wild!

Image: Christian Benseler/Flickr

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0 comments on “Why Breeding Dolphins and Orcas in Captivity is a Horrible Idea”

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Robert Anderson
3 Years Ago

Over 70% of SeaWorld\'s orcas are descended from 4 Icelandic orcas, 3 of whom were captured from adjacent and possibly the same pod: Katina, Kasatka, and Kotar. SeaWorld has also crossed orcas from pods so distinctly different that they are arguably different species, e.g. Pacific Northwest Resident +Transient and PNW Resident + Icelandic.

3 Years Ago

COMPLETELY agree! How is this "research"? How are we really helping these animals by having them there? When I was little, I went to several shows (not knowing) and never once was I actually educated on these animals. They gave you a few quick facts, which now I see were actually lies, but the point of it was all entertainment. Getting splashed, watching them throw people in the air...like a circus, just spun differently. These animals are FINE in their wild environment, they aren\'t extinct, they DONT need our help. The most we can do is leave them alone. If you want to do research, how about studying them in their NATURAL habitat. Ridiculous. Cant wait for Sea World (and all other marine parks) to be SHUT DOWN>

Betsy McIntyre
3 Years Ago

I\'ve been to Sea World in Florida only once. I could tell and actually feel that this practice was wrong. Looking into the animals eyes It was like seeing a soul that was slowly dying! I NEVER went back nor support them.

joey racano
3 Years Ago

This article is right on the money. Who are these zoos and aquariums to be creating franken-whales and dolphins? These hideous parks teach our young all the wrong things and should be shut down and all marine mammals released -including captive bred ones.

joey Racano, Director
Ocean Out


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