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For Ma, growing a more adultlike heart organoid, with all its chambers and structures, is the future of the field. But he doesn’t think this will happen in the next decade. For a complete heartlike organoid, he says, “there is still a long way to go.”


Self-organizing organoids resemble a 1-month-old embryo’s heart.

Kelly and photographer Carlton Ward Jr. are featured in the April issue of National Geographic magazine. The article provides a glimpse into the life of the Florida panther, whose population once dwindled to below two dozen but has since rebounded to more than 200. Still, serious risks remain. In the past few weeks alone, two more endangered animals were killed after being struck by vehicles. Those deaths highlight a problem — as well as a success story for the cat the Cherokee once called “Lord of the forest.”

To capture panthers on camera, Kelly and Ward first had to find them. That’s not an easy task on Florida’s sandy soil, which makes them hard to track. You have to find really fresh tracks, Kelly said.

“First things first is identifying the track and knowing if it’s a panther or not. And then the real trick is following it,” he said. “So because they go so far, like in any given night, a panther might walk oh, a couple of miles. Maybe more. To actually follow panther tracks to find the panther itself — it’s way harder than it is for any of those African animals. Way harder.”

The price of bitcoin jumped about 4% Monday afternoon after Tesla CEO Elon Musk tweeted that he was having active discussions regarding the sustainability of the digital coin.

Bitcoin was trading around $38074, according to Coindesk, when at about 3:42 p.m. ET Musk posted on Twitter: “Spoke with North American Bitcoin miners. They committed to publish current & planned renewable usage & to ask miners WW to do so. Potentially promising.”

Within minutes, the price had shot up to more than $39500. Overall, the coin is up more than 17% in the last 24 hours.

The recent announcement that scientists have made human-monkey embryos and cultured them in the lab for two weeks made international headlines.

The technology to make animals that contain cells from other species has been available for decades and used extensively in research. These organisms are called “chimeras”.

But this latest advance highlights the need to broaden the discussion around the possible benefits of such research and, specifically, how inter-species chimeric research should be conducted in future.

It’s that time of year where the federal holiday in the United States commemorating the Declaration of Independence of the United States, (on July 4, 1776) is celebrated. To all my American fans I hope you have an awesome day! To celebrate I’m listing my favorite superheroes to rock the “Red, White and Blue”.

Happy Independence Day (Fourth of July)!