What are the key takeaways from this Science Vs episode?

Key insights include: **Gene Editing Limitations:** Colossal modified only 15 of 80 potential dire wolf genes in gray wolves, deliberately avoiding five genes that would cause deafness and blindness, demonstrating how genetic engineering creates unpredictable health problems in de-extinct animals.; **Space Constraints:** The engineered wolves occupy approximately three square miles while natural wolves require 50 to 1,000 square miles of territory, creating welfare concerns about confinement and preventing any realistic reintroduction into wild ecosystems for environmental benefit.; **Business Model Reality:** The company plans to profit from spinning off biomedical technology developed during de-extinction research rather than displaying animals, with investors treating this as a tech venture comparable to cryptocurrency rather than conservation funding.

What did D. T. Maxx discuss on Science Vs?

Colossal Biosciences claims to have resurrected dire wolves by editing 14 gray wolf genes, raising $400 million and achieving a $10 billion valuation, but scientists question whether these modified animals are truly dire wolves. Key topics include: **Gene Editing Limitations:** Colossal modified only 15 of 80 potential dire wolf genes in gray wolves, deliberately avoiding five genes that would cause deafness and blindness, demonstrating how genetic engineering creates unpredictable health problems in de-extinct animals.; **Space Constraints:** The engineered wolves occupy approximately three square miles while natural wolves require 50 to 1,000 square miles of territory, creating welfare concerns about confinement and preventing any realistic reintroduction into wild ecosystems for environmental benefit..

How long is this episode of Science Vs?

This episode is 27 minutes long. SignalCast provides an AI-generated summary so you can get the key insights in about 3 minutes.

Science Vs

Dire Wolves! They're Back?

May 29, 2025

27 min episode · 2 min read

D. T. Maxx

Episode

27 min

Read time

2 min

Topics

Health & Wellness, Investing, Fundraising & VC

AI-Generated Summary

Published Dec 25, 2025

Key Takeaways

✓Gene Editing Limitations: Colossal modified only 15 of 80 potential dire wolf genes in gray wolves, deliberately avoiding five genes that would cause deafness and blindness, demonstrating how genetic engineering creates unpredictable health problems in de-extinct animals.
✓Space Constraints: The engineered wolves occupy approximately three square miles while natural wolves require 50 to 1,000 square miles of territory, creating welfare concerns about confinement and preventing any realistic reintroduction into wild ecosystems for environmental benefit.
✓Business Model Reality: The company plans to profit from spinning off biomedical technology developed during de-extinction research rather than displaying animals, with investors treating this as a tech venture comparable to cryptocurrency rather than conservation funding.
✓Regulatory Vacuum: No government regulations currently govern de-extinction processes despite animal welfare concerns throughout breeding, with the Trump administration suggesting de-extinction eliminates the need for endangered species protections, allowing extinction without consequences.

What It Covers

Colossal Biosciences claims to have resurrected dire wolves by editing 14 gray wolf genes, raising $400 million and achieving a $10 billion valuation, but scientists question whether these modified animals are truly dire wolves.

Key Questions Answered

•Gene Editing Limitations: Colossal modified only 15 of 80 potential dire wolf genes in gray wolves, deliberately avoiding five genes that would cause deafness and blindness, demonstrating how genetic engineering creates unpredictable health problems in de-extinct animals.
•Space Constraints: The engineered wolves occupy approximately three square miles while natural wolves require 50 to 1,000 square miles of territory, creating welfare concerns about confinement and preventing any realistic reintroduction into wild ecosystems for environmental benefit.
•Business Model Reality: The company plans to profit from spinning off biomedical technology developed during de-extinction research rather than displaying animals, with investors treating this as a tech venture comparable to cryptocurrency rather than conservation funding.
•Regulatory Vacuum: No government regulations currently govern de-extinction processes despite animal welfare concerns throughout breeding, with the Trump administration suggesting de-extinction eliminates the need for endangered species protections, allowing extinction without consequences.

Notable Moment

A journalist who viewed the wolves describes them as blissfully unaware of the controversy surrounding their creation, behaving like typical canines while representing a $10 billion company's technological achievement that may never reproduce or serve conservation purposes.

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Episode Transcript

Hi. I'm Wendy Zuckerman, and you're listening to Science Versus. Earlier this year, there was this huge news that scientists had brought back the dire wolf. Meet Remus and Romulus, the first two dire wolves since the Pleistocene era. This is a promotional video from the company that made these wolves, Colossal. And in the video, you can see these gorgeous little white pups. At just 15 old, the pups take their first wobbly steps before a much needed nap time. The pups who are now more than six months old were made by taking the DNA of a grey wolf and then tweaking 14 genes in it to make them bigger, give them lighter coats, have larger teeth and jaws than a grey wolf would have. And when folks found out about these animals, there was this huge media buzz with headlines plastered all over the place. One of the wolves even made the cover of Time magazine with the line, quote, he's a direwolf, the first to exist in ten thousand years. Endangered species could be changed forever. But is that right? Did scientists really bring back the dire wolf? What exactly is going on here? And is this a good idea? Or could it have dire consequences? That's what our friends over at Today Explained wanted to know. So today, we're gonna share their episode looking into this. After the break, co host of Today Explained, Sean Ramaswaran, will take it from here. This episode is brought to you by ServiceNow. AI is only as powerful as a platform it's built into. That's why it's no surprise that more than 85% of the Fortune 500 use the ServiceNow AI platform. While other platforms duct tape tools together, ServiceNow seamlessly unifies people, data, workflows, and AI connecting every corner of your business. And with AI agents working together autonomously, anyone in any department can focus on the work that matters most. Learn how ServiceNow puts AI to work for people at servicenow.com. This episode is brought to you by Ford BlueCruise. There's something to be said about long drives, the playlists, the games, the snacks, the goofy stuff we do for our entertainment. Ford BlueCruise makes these moments even better. With hands free highway driving, it takes one thing off your plate so you can fully enjoy the drive and the company and every mile of the journey. It makes me think of this trip I took with my best friend years and years ago. We were in the car for seventeen hours each way across a lot of desert. And we decided to keep a notebook, kind of a log for the entire drive. Every silly inside joke, every vanity license plate that made us laugh, every single weird place we stopped along the highway, like the haunted wax museum with a lot of weird and creepy artifacts, everything, it all went into the notebook. And it ended up being such a cool thing because that notebook …

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