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The giant clams are the members of the clam genus Tridacna that are the largest living bivalve mollusks. There are actually several species of "giant clams" in the genus Tridacna
Cladophora sp. algae under microscopic view
The giant clams are the members of the clam genus Tridacna that are the largest living bivalve mollusks. There are several species of "giant clams" in the genus Tridacna.
Haematococcus pluvialis algae under microscopic view
Batrachospermum sp. algae under microscopic view

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Seedpod and seeds of milkweed (genus: Asclepias; unidentified species) early in autumn, field in northern Illinois. Milkweed seeds are dispersed by wind. Image used under license from Freestock.com<a href="https://www.freestock.com/free-photos/seedpod-seeds-milkweed-genus-asclepias-unidentified-290659382">Image used under license from Freestock.com</a>
Many milkweed plants (genus: Asclepias) with unopened pods in prairie, late summer in IllinoisImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/milkweed-plants-genus-asclepias-unopened-pods-84329179">Image used under license from Freestock.com</a>
Peeling bark of paper birch, genus Betula papyrifera, close-upImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/peeling-bark-paper-birch-genus-betula-3402792">Image used under license from Freestock.com</a>
Garden study in pink and light green: Clumps of rock cress (most likely botanical name: Arabis blepharophylla or Arabis caucasica) surrounded by light green ground cover in spring, Wheaton, IllinoisImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/garden-study-pink-light-green-clumps-104645525">Image used under license from Freestock.com</a>
Tulip field on a tulip farmImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/tulip-field-tulip-farm-695557">Image used under license from Freestock.com</a>