Finally, in 2013, Michael Berenbrink of Liverpool Univ. and Kevin Campbell of the Univ. of Manitoba noted that deep - diving mammals expressed large amounts of myoglobin in their muscle tissue. (rdmag.com)
The dark - colored urine results from the breakdown of muscle, which deposits a protein called myoglobin in the blood and urine. (verywellfit.com)
In her tests, Samuel compared the stability and cell - free expression level of myoglobins from humans, pigs, goosebeak whales, gray seals, sperm whales, dwarf sperm whales and the three mutants, which had low heme affinity but were 50 times more stable than apomyoglobins from the whales. (rdmag.com)