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Elastic fibres are made of elastin, one type of structural protein found in the ECM of animal cells
A purse made from a cane toad.
Walrus Ivory masks made by Yupik in Alaska
Cystostomy. An artificial opening is made through the urinary bladder wall during this procedure. As
Abundant cave art after about 30,000 years ago is evidence of the importance of symbolic behavior fo
When Union troops pushed toward Richmond in June of 1862, these slaves crossed the Rappahannock Rive