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Hunting for sand dollars

In Florida, correspondent Martha Teichner goes searching for sand dollars – cousins of sea urchins and sea stars – with naturalist Kristen Williams (a.k.a. The Seashell Mermaid). She also goes to the California Academy of Sciences' Steinhart Aquarium in San Francisco to learn what makes these sea creatures so special. (Originally broadcast April 12, 2026.)

We haven't written up this one. CBS News has the full story — the link below goes straight to it.

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Make your AI assistant predict the result before it runs it

Less technical than my usual posts. Nothing to install, nothing to pay for, and it works the same whether you're using an AI assistant for code, spreadsheets, research or writing. Here is the shape of the problem I want to describe. See if you recognise it. You ask your assistant to do something that produces a result. It does.

AI use mirrors student schedules in study of 77,000 online learners

How do students actually use AI learning assistants? A new research paper by IU International University of Applied Sciences provides the first robust answers to this question. For the study "Using AI-based Learning Assistants in Higher Education: A Large-Scale Descriptive Analysis," the research team led by Prof. Dr.-Ing.

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