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“Attempting to reconstruct the history of early humanity from the available evidence is, it has been said, akin to trying to divine the plot of War and Peace from just 13 of its pages, picked at random.”

👀 On our radar: A vicious dispute raging over fossils of human ancestors // Scott Sayare, The Guardian

theguardian.com/science/2025/m

The Guardian · The curse of Toumaï: an ancient skull, a disputed femur and a bitter feud over humanity’s originsBy Scott Sayare

Organs from gene-edited pigs have offered new hope to people in desperate need of kidneys, but there is still much to be learned about how to keep those engineered porcine organs healthy. Scientists are still figuring out which genetic tweaks matter most, for example, as well as the right combination of immune-suppressing drugs, Jon Cohen reports in Science. science.org/content/article/ca

A small black hole that’s journeying through our galaxy is all alone. Scientists suspect there are many such loner black holes, but until now, none have ever been confirmed, Ken Croswell reports in Science News.

sciencenews.org/article/lone-b

Science News · Yes, there really is a black hole on the loose in SagittariusAstronomers now agree: They’ve spotted the first isolated stellar-mass black hole ever seen.

Most songbird species have complex songs and fairly simple calls. This is why vocalizations sound most melodic during the spring, when birds are attracting mates and breeding.

Chickadees, however, are unusual in that they sing very simple songs relative to the complexity of their calls.

✍️ Sofia Marie Haley writes for @TheConversationUS

theconversation.com/mountain-c

The ConversationMountain chickadee chatter: Scientists are decoding the songbird’s complex callsMountain chickadees follow systematic grammarlike rules to share important information, stringing together syllables like words in a sentence.

Of the roughly 1 million named insect species on Earth, about 400,000 are beetles. And that’s just the beetles described so far. Scientists typically describe thousands of new species each year. So — why so many beetle species? “We don’t know the precise answer,” says Chaboo, an entomologist at the University of Nebraska. But clues are emerging.

knowablemagazine.org/content/a


Knowable Magazine | Annual ReviewsWhy are there so many beetle species?Diet played a key role in the evolution of the vast beetle family tree

Diagnosing (brain) tumors in seconds: crossNN is a new AI model developed by researchers at #CharitéBerlin, German Cancer Consortium (DKTK) and Berlin Institute of Health. It recognizes more than 170 types of cancer based on epigenetic profiles with almost 100% certainty. Now #NatureCancer

👉 charite.de/en/service/press_re