What Shedd Aquarium does and why people question it

Shedd Aquarium in Chicago houses thousands of animals—dolphins, whales, sea lions, fish, and others—in tanks and pools. The ethical concerns center on whether captive marine animals can have good lives in human care, whether the animals are treated well by current standards, and whether keeping them serves a real educational or conservation purpose or mainly profits the institution.

These are not straightforward yes-or-no questions. Shedd operates under federal law and accreditation standards that set minimum requirements, but those standards themselves are debated by marine biologists, animal welfare advocates, and conservationists. What one person considers ethical another may not.

Key Takeaways

  • Shedd Aquarium is accredited by the Association of Zoos and Aquariums (AZA) and must meet federal standards for animal care, but accreditation does not mean all animals live in ideal conditions.
  • The main ethical concerns are tank size relative to animal needs, whether captivity causes psychological harm, and whether the educational benefit justifies keeping wild-caught or captive-bred marine mammals.
  • Shedd has ended some practices—it no longer breeds dolphins in captivity and no longer imports wild-caught marine mammals—but still houses animals born before those policies changed.
  • Marine biologists and animal welfare groups disagree on whether modern aquariums can meet the needs of large marine mammals like dolphins and whales.
  • You can research Shedd's specific practices, funding sources, and conservation work through its annual reports and public statements.

What federal law and accreditation require

Shedd Aquarium must follow the Animal Welfare Act, a federal law enforced by the U.S. Department of Agriculture (USDA). The law sets minimum standards for space, feeding, veterinary care, and handling, but the standards are baseline requirements, not ideals. A facility can be legal and still house animals in conditions many people would consider poor.

Shedd is also accredited by the Association of Zoos and Aquariums (AZA), a membership organization that sets its own standards—generally stricter than federal law. AZA accreditation requires facilities to meet standards for animal care, staff training, record-keeping, and conservation work. However, accreditation is voluntary, and an accredited facility can still face criticism from animal welfare advocates who believe the standards themselves are insufficient.

Neither the USDA nor the AZA determines whether keeping an animal in captivity is ethical—only whether the captive conditions meet defined minimums. That distinction matters: a facility can pass inspection and still be operating in a way some people find unethical.

Tank size and whether captive spaces meet animal needs

The most common criticism of Shedd and similar facilities is that tanks and pools are too small for the animals they hold. Dolphins and whales in the wild travel dozens of miles daily, dive to significant depths, and live in social groups. A pool, no matter how large, cannot replicate those conditions.

Shedd's dolphin pool is approximately 2 million gallons. That sounds large, but marine mammal researchers point out that a dolphin's home range in the ocean spans hundreds of square miles. The pool is roughly equivalent to a human living in a large house—comfortable by some measures, but a fraction of the space a wild dolphin would naturally occupy.

The AZA has specific tank-size requirements for different species, but animal welfare advocates argue those requirements are based on what is practical and profitable for facilities, not on what animals actually need to thrive. Some marine biologists say captive dolphins show signs of psychological distress—repetitive behaviors, aggression, and reduced lifespan—that suggest the environment is inherently stressful regardless of tank size.

Shedd argues that its animals receive excellent medical care, enrichment activities, and trained handling that wild animals do not. That is true, but it does not resolve the underlying question: can a captive environment, however well-managed, meet the needs of an animal evolved for the open ocean?

Shedd's history with wild-caught and captive-bred marine mammals

Shedd's ethical record has changed over time. For decades, the aquarium captured dolphins and whales from the wild and bred them in captivity. In the 1980s and 1990s, Shedd was involved in controversial captures of beluga whales and dolphins, practices that drew significant criticism from marine mammal advocates.

In 2017, Shedd announced it would end its captive breeding program for dolphins and no longer import wild-caught marine mammals. That was a significant policy shift. However, the animals currently at Shedd were born before that policy—some decades ago—so the change does not affect the animals visitors see today.

Shedd still houses dolphins and whales born in captivity at other facilities or captured in the past. The aquarium argues that releasing these animals would be impossible (they would not survive in the wild) and that keeping them allows the facility to conduct research and education. Critics counter that the research and education do not justify keeping animals in conditions they did not choose and cannot leave.

What Shedd says about conservation and education

Shedd Aquarium states that its mission includes conservation, research, and education. The facility funds marine conservation projects, trains researchers, and educates millions of visitors annually about ocean ecosystems and marine animal biology.

The aquarium argues that seeing animals in person—rather than only in documentaries or textbooks—creates emotional connection that motivates people to care about ocean conservation. Some visitors do report that seeing a dolphin or whale in person changed their perspective on marine life and environmental protection.

However, critics argue that this benefit does not outweigh the cost to the animals themselves. They point out that education about marine life can happen without captive marine mammals—through videos, interactive exhibits, and field trips to natural habitats. Some research conducted at Shedd could be done through non-invasive field studies instead.

How to research Shedd's practices yourself

If you want to form your own view, several sources provide factual information about Shedd's operations. The aquarium publishes annual reports and conservation updates on its website that detail its animal care practices, research projects, and funding. You can also review USDA inspection records, which are public documents available through the USDA's Animal Care database.

Animal welfare organizations including the Dolphin Project, World Animal Protection, and the Humane Society International publish reports on captive marine mammals and specific facilities. These reports often include criticism, but they cite specific practices and standards, so you can evaluate the claims yourself.

Scientific literature on captive marine mammals is also available through university libraries and databases like Google Scholar. Papers by marine biologists and animal behaviorists discuss what is known about the effects of captivity on dolphins, whales, and other species.

The broader debate: is any aquarium ethical?

The question of whether Shedd is ethical is part of a larger debate about whether keeping marine mammals in captivity can ever be ethical. Some animal welfare advocates argue that large marine mammals should not be kept in captivity at all, regardless of care standards. Others believe that modern facilities with strong welfare practices can house animals humanely, especially if those animals were born in captivity and cannot be released.

Marine biologists are divided. Some research suggests that captive dolphins show chronic stress indicators. Other research suggests that well-managed facilities can provide adequate welfare. The disagreement reflects genuine scientific uncertainty about what captive animals experience and whether captivity causes lasting harm.

Your own view may depend on how you weigh different values: the educational benefit to humans, the conservation research conducted, the welfare of individual animals, and the principle of whether wild animals should be confined for human purposes at all.

Frequently Asked Questions

Does Shedd still capture dolphins from the wild?

No. Shedd announced in 2017 that it would no longer import wild-caught marine mammals. However, the dolphins and whales currently at Shedd were either born in captivity or captured before that policy took effect. The policy does not affect the animals you see today.

Are Shedd's animals treated better than at other aquariums?

Shedd is accredited by the AZA and meets federal welfare standards, which puts it among better-managed facilities. However, accreditation does not mean the animals live in ideal conditions—only that they meet defined minimums. Other AZA-accredited aquariums may have similar or different practices.

What happens to Shedd's animals if the aquarium closes?

That is unclear and depends on the animals involved. Captive-born dolphins and whales cannot be released into the wild. They would likely be transferred to other facilities or, in some cases, euthanized. This is one reason animal advocates argue against breeding marine mammals in captivity in the first place.

Can I visit Shedd and still oppose captive marine mammals?

Yes. Some people visit to see the animals while also believing the practice should end. Others choose not to visit on ethical grounds. Both are consistent positions. Your decision depends on your own values and what you believe visiting supports or opposes.