23 species may be de-listed from the Endangered Species Act due to extinction. Here's what needs to be done to prevent further loss.

Species that once thrived in North America are meeting their demise.

Species that once thrived in North America are are rapidly on the way to becoming extinct, and as conservationists work to prevent further loss, some are criticizing the federal government for not acting with the necessary urgency to combat the drastic declines.

The U.S. Fish and Wildlife Service was criticized constantly over actions taken during Donald Trump's tenure as president. In 2019, Trump's administration made changes to the Endangered Species Act, altering the requirements for how the government decides to add or remove species from the list of protected animals and limiting how much habitat must be protected. And even after Trump left office, lawsuits against the federal government continued to pile up over ESA decisions made by his administration.

Now, some conservationists are denouncing the Biden administration's perceived inaction to preserve biodiversity, saying that many more species are at risk of extinction should the current trajectory continue.

"The administration has been completely lukewarm on endangered species so far," Tierra Curry, senior scientists for the Center for Biological Diversity, a conservation nonprofit, told ABC News.