Center for Biological Diversity

For Immediate Release, March 20, 2023


Tanya Sanerib, Center for Biological Diversity, (206) 379-7363,
Rodi Rosensweig, The Humane Society of the United States/Humane Society International/Humane Society Legislative Fund, (202) 809-8711,

Hippos Move Step Closer to Endangered Species Act Protections

In Response to Petition, U.S. Officials Consider Protecting Hippos

WASHINGTON— After a petition and threat to sue from animal protection and conservation groups, the U.S. Fish and Wildlife Service today announced that the common hippopotamus may qualify for protection under the Endangered Species Act.

In March 2022, Humane Society International, the Humane Society of the United States, Humane Society Legislative Fund and the Center for Biological Diversity filed a petition seeking federal protections for this iconic species, which is disappearing from the wild.

After the Service missed its June 2022 deadline to respond to the petition, the groups sent notice of their intent to sue on World Hippo day. Today’s announcement from the agency provides the legally required initial response.

Hippos are threatened by habitat loss and degradation, drought, poaching, and the international demand for hippo parts, including teeth, skulls, ivory, skin and meat.

“This is an important first step towards saving hippos by providing the protections they so badly need under the Endangered Species Act,” said Adam Peyman, wildlife programs director for Humane Society International, speaking on behalf of HSI and the HSUS. “These animals face threats from climate change, poaching and the commercial demand for their skin, bones, teeth and other parts and products. Protections for hippos cannot come soon enough.”

International trade in hippo parts and products is significant, with the United States playing an outsized role. Between 2009 and 2018, the United States imported thousands of hippo parts and products, including more than 9,000 teeth, 700 skin pieces, 4,400 small leather products, 2,000 trophies and 1,700 carvings. Combined, these imports represent a minimum of 3,081 hippos killed to fuel the legal U.S. trade, which remains unchecked because of the absence of Endangered Species Act protections for the species.

“With the many clear threats they’re facing, hippos are a shoo-in for Endangered Species Act protections, but the Biden administration dilly-dallied an extra nine months before making this finding,” said Tanya Sanerib, international legal director at the Center for Biological Diversity. “This hippo delay is just the tip of the iceberg, and it highlights that the Biden administration isn’t doing nearly enough to combat the burgeoning extinction crisis. If iconic species like hippos are waiting in purgatory for protections, that doesn’t bode well for the future of life on Earth.”

Across many parts of the United States, hippo parts and products are readily available for purchase. A 2022 undercover investigation by HSI and the HSUS revealed thousands of items made from hippo parts for sale in the United States. Products made from hippo leather, such as belts, shoes and purses, and items made from hippo ivory, such as carvings and handles on knives and bottle openers, were among the most common items found for sale.

Trophies, such as shoulder mounts (the animal’s head and neck) and mounted teeth, were also available for purchase. Some of these items may have been illegally acquired or traded due to the lack of effective regulatory enforcement.

The Endangered Species Act protections that the groups are seeking would place near-total restrictions on most commercial imports and sales of hippo specimens and raise public awareness and increase funding to achieve the law’s conservation goals.

“We are pleased to see the Biden administration’s announcement toward listing this iconic species,” says Tracie Letterman, vice president of federal affairs at Humane Society Legislative Fund. “For the last 50 years, the Endangered Species Act has helped save 99% of listed species from extinction. We look forward to supporting the administration in its work to ensure the protection of the hippo and other imperiled species for decades to come.”

Under federal law, the Service must next decide whether Endangered Species Act listing is warranted. Given its delay in providing an initial response to the petition, the agency will likely miss its deadline for this second determination — due in four days’ time. The groups will continue to closely monitor the progress of the petition during the next phase of the process.

A hippo in Uganda. Photo credit: Brett Hartl / Center for Biological Diversity Image is available for media use.

The Center for Biological Diversity is a national, nonprofit conservation organization with more than 1.7 million members and online activists dedicated to the protection of endangered species and wild places.

Advancing the welfare of animals in more than 50 countries, Humane Society International works around the globe to promote the human-animal bond, rescue and protect dogs and cats, improve farm animal welfare, protect wildlife, promote animal-free testing and research, respond to natural disasters and confront cruelty to animals in all of its forms.

Founded in 1954, the Humane Society of the United States fights the big fights to end suffering for all animals. Together with millions of supporters, we take on puppy mills, factory farms, trophy hunts, animal testing and other cruel industries. With our affiliates, we rescue and care for tens of thousands of animals every year through our animal rescue team’s work and other hands-on animal care services. We fight all forms of animal cruelty to achieve the vision behind our name: A humane society.

Humane Society Legislative Fund works to pass animal protection laws at the state and federal level, to educate the public about animal protection issues and support humane candidates for office. Formed in 2004, HSLF is incorporated under section 501(c)(4) of the Internal Revenue Code as a separate lobbying affiliate of the Humane Society of the United States.

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