lower1. 1  to cause to descend; let or put down: to lower a flag. 2  to make lower in height or level: to lower the water in a canal. 3  to reduce in amount, price, degree, force, etc. 4  to make less loud: Please lower your voice.
Biggest Whale-Basilosaurus (60 Tons). Basilosaurus (Nobu Tamura). Unlike the other mammals on this list, Basilosaurus can't lay claim to being the largest-ever of its breed--that honor belongs to the still-extant Blue Whale, which can grow to as much as 200 tons.
The largest animal that ever lived, is alive now, and is the Blue Whale, however, there are two Dinosaurs that could perhaps be larger. Amphicoelias Fragillimus, which if exis â¦ ted would have been up to 196 feet long and 122 tons. Also, Bruhathkayosaurus Matleyi, which possibly was 110 feet long and 139 tons.