Helen Scales
speaker
228 appearances
1 recordings
1 series
first heard Jul 2026
last heard 30 Jul
Helen Scales’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Jul 2026 with 1.
Appearances
Well, in my mind, when we say seashells, we're talking about things that are made by a group of really diverse, abundant marine animals that are called mollusks.
That's the big group name for them is mollusks.
They're invertebrates, so they have no bones.
They're soft, squishy things, but they tend to, many of them live inside.
They create a hard outer layer, an exoskeleton.
And that is the seashell.
It can serve lots of different purposes.
First and foremost, really, it's their home.
For many of them, it's a portable home.
They can carry it around with them.
When they move, many of them even have a front door which they can slam shut to keep predators out and to keep water in there as well if they're the kind of mollusk that lives on the shoreline and perhaps has to put up with the tide going out.
These mollusks, they live all through the ocean.
They are incredibly cosmopolitan, everywhere from the deepest seas to...
extreme environments like hydrothermal vents.
They swim through the water column.
They occupy the shoreline.
Those are the ones I think we know the best, really, because those are the shells that tend to wash up most easily on beaches.
And then some of them made it into fresh water.
Some came out onto land.
Those are the slugs and snails.
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