125-million-year-old fossil reveals 'pregnant' shellfish
Scientists have discovered 125-million-year-old fossilized freshwater shellfish containing preserved embryos and larvae. This finding provides the earliest known evidence of maternal care in mollusks, offering new insights into their evolutionary history.
Why it matters
It fills a significant gap in the evolutionary record regarding how ancient freshwater species adapted to their environments through specific reproductive strategies.
edited by Lisa Lock , reviewed by Robert Egan
The article is a straightforward report on a peer-reviewed scientific study without political or social framing.
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