I waddled onto the beach and stole found a computer to use.

🍁⚕️ 💽

Note: I’m moderating a handful of communities in more of a caretaker role. If you want to take one on, send me a message and I’ll share more info :)

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Joined 2 years ago
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Cake day: June 5th, 2023

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  • Neat!

    The workers in Iberian harvester ant (Messor ibericus) colonies are all hybrids, with queens needing to mate with males from a distantly related species, Messor structor, to keep the colony functioning. But researchers found that some Iberian harvester ant populations have no M. structor colonies nearby.

    “That was very, very abnormal. I mean, it was kind of a paradox,” study co-author Jonathan Romiguier, an evolutionary biologist at the University of Montpellier, told Live Science. The team initially believed there was a sampling issue, but they went on to find 69 regions where this was the case.

    In setting out to resolve this paradox, Romiguier and his team found that queen Iberian harvester ants also lay eggs containing male M. structor ants, with these males ultimately fathering the workers. This discovery, published Sept. 3 in the journal Nature, is the first time any animal has been recorded producing offspring from another species as part of their normal life cycle.

    “In the early stages, it was kind of a joke in the team,” Romiguier said. “But the more we got results, the more it became a hypothesis and not a joke anymore.”

    […]

    The team then separated 16 queens from laboratory colonies and looked at the genetic sequences of their freshly laid eggs. They found that 9% of their eggs contained M. structor ants. They then directly observed a single queen producing males of both species by monitoring its broods weekly over an 18-month period.

    Together, all these findings show that Iberian harvester ant queens are cloning M. structor males and not passing on any of their own nuclear DNA. Researchers now need to pinpoint the exact mechanism underlying this cloning, Romiguier said, and find out at what point the maternal DNA is removed.







  • A few other notes

    • MSN links are annoying because they act as a wrapper for the content that another actual news site put out. Finding the original link is better for everyone, and it helps on the Lemmy side since then the UI can indicate cross posts with that correct link

    • I don’t find as much value in news stories with “Trump says” in the headline. It helps in order to anticipate what kind of issues he might cause next, but otherwise I’d much rather read what actually happened instead of losing brain cells reading what trump said about it




  • you’d end up with a list of people assigned to tasks that ordinarily be an A4 page, printed at 400% size and having to be blu-tac’d to the wall rather than just pinned as usual

    I’m picturing a group of people crowding around a wall looking for a list of names (assignments, exam results, roles for a play), not realizing that the wall is the list because it’s on A0










  • Explanation of the “own rain” bit

    The Amazon is the world’s largest tropical forest, home to unmatched biodiversity and one of the planet’s longest rivers. Besides the Amazon River, the Amazon rainforest also features “flying rivers:” invisible streams of vapour that travel through the atmosphere, fuelling rainfall both within the forest and far beyond its boundaries.

    The forests play a central role in this system. Much of the moisture that rises into the atmosphere comes from transpiration. Trees pull water from the soil through their roots, transport it to the leaves and release it as vapour. That vapour becomes rainfall — sometimes locally, sometimes hundreds of kilometres away.