The Last 1%

In Southern Alberta, Canada, there is a piece of nature that is the very last of it's kind - less than one percent remains... and these folks are trying to save it!

Wander without
purpose or reason.

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Reefs aren't only those colorful, coral-laden structures located in tropical waters. Microbial reefs have resurfaced in Utah's immense Great Salt Lake in recent years, following a precipitous drop in water levels. Learn about the organisms that rely on these barren reefs at bit.ly/44int3M 📷 Kayla Smith ... See MoreSee Less

Did you know?Most earthworms in Canada are non-native
Erin Cameron photo
There are no native earthworms in most of Canada and the northern United States because they were wiped out during the last ice age, 11,000 years ago. European earthworms were likely introduced to North America when settlers brought plants and soil from Europe which contained earthworms or their cocoons (egg cases).

They may also have been introduced by ships that used soil as ballast, which was dumped on shore to adjust the weight of the ship. Due to these activities, earthworms have been found around human settlements in North America since the late 1800s.

Some areas of North America that were not glaciated have native earthworms In Alberta, one native species has been found in the Porcupine Hills, an area that was not covered by glaciers. This species does not appear to have spread from that location. There are at least 14 species of non-native earthworms in Alberta.

Most people think earthworms are good for soil but that is not true in all cases. Research shows that small mammals, birds, salamanders, invertebrates, and plants can be harmed by earthworm invasions in forests.
worms.biology.ualberta.ca/spread/
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The Official Extended Trailer for Trapped in the Past ... See MoreSee Less

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