Easton's Bible Dictionary (1897)
This word is found in Ex. 25:5; 26:14; 35:7, 23; 36:19; 39:34; Num. 4:6, etc. The tabernacle was covered with badgers’ skins; the shoes of women were also made of them (Ezek. 16:10). ” The Arabs of the Sinaitic peninsula apply the name tucash to the seals and dugongs which are common in the Red Sea, and the skins of which are largely used as leather and for sandals. Though the badger is common in Palestine, and might occur in the wilderness, its small hide would have been useless as a tent covering.
The dugong, very plentiful in the shallow waters on the shores of the Red Sea, is a marine animal from 12 to 30 feet long, something between a whale and a seal, never leaving the water, but very easily caught. It grazes on seaweed, and is known by naturalists as Halicore tabernaculi.