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Hunters view antlers of deer bucks during a trophy inspection in Hungary. Photo: Zsolt Czegledi / AP

Species of elephants, lions and other animals targeted by trophy hunters and poachers looking for the biggest, most impressive horns and antlers, have less of an ability to adapt to climate change, according to a new study by researchers at Queen Mary University.

The reason: Impressive antlers, manes and other characteristics can indicate how well an animal is doing overall, which can also mean they are better genetically equipped for their environment. "They also father a high proportion of the offspring. But if they're killed before they can spread their 'good genes' around, this reduces the overall fitness and resilience of that population," the study's lead author Robert Knell told National Geographic.

Yes, but: Knell said properly managed trophy hunting can be an asset to conservation, which is why the group is not calling for a ban. One suggestion may be to restrict the age at which a trophy animal can be hunted in order to give them time to pass on their genes to the next generation and the population more broadly.

In other studies: David Coltman, a biological science professor at University of Alberta, said that the results from Knell's study using a computer simulation model matched those of his own on big horn sheep in the Rocky Mountains, where they've seen a 20% decline in the size of the sheep's horns due to decades of trophy hunting.

Big picture: The Fish and Wildlife Service recently lifted a ban on importing hunted elephant trophies from Zimbabwe and Zambia when it can be proved it aided in conservation efforts. The announcement sparked outrage, which led to Trump tweeting and Interior Secretary Ryan Zinke releasing a statement saying permits would be put on hold while the decision about the ban was reviewed.

Go deeper

Biden's Day 1 challenges: Systemic racism

Photo illustration: Sarah Grillo/Axios. Photo: Kirsty O'Connor (PA Images)/Getty Images

Advocates are pushing President-elect Biden to tackle systemic racism with a Day 1 agenda that includes ending the detention of migrant children and expanding DACA, announcing a Justice Department investigation of rogue police departments and returning some public lands to Indigenous tribes.

Why it matters: Biden has said the fight against systemic racism will be one of the top goals of his presidency — but the expectations may be so high that he won't be able to meet them.

Caitlin Owens, author of Vitals
54 mins ago - Health

Most Americans are still vulnerable to the coronavirus

Adapted from Bajema, et al., 2020, "Estimated SARS-CoV-2 Seroprevalence in the US as of September 2020"; Cartogram: Andrew Witherspoon/Axios

As of September, the vast majority of Americans did not have coronavirus antibodies, according to a new study published in JAMA Internal Medicine.

Why it matters: As the coronavirus spreads rapidly throughout most of the country, most people remain vulnerable to it.

Trump set to appear at Pennsylvania GOP hearing on voter fraud claims

President Trumpat the White House on Tuesday. Photo: Chip Somodevilla/Getty Images

President Trump is due to join his personal lawyer Rudy Giuliani in Gettysburg, Pennsylvania, Wednesday at a Republican-led state Senate Majority Policy Committee hearing to discuss alleged election irregularities.

Why it matters: This would be his first trip outside of the DMV since Election Day and comes shortly after GSA ascertained the results, formally signing off on a transition to President-elect Biden.