Complex sentence: The green blood pigmentation results in a strikingly bright lime-green coloration of muscles, bones, tongue, and mucosal tissue, and is the result of the accumulation of the bile pigment biliverdin in levels that would be toxic in all other vertebrates.
Split into simpler sentences: The green blood pigmentation results in a strikingly bright lime-green coloration of muscles, bones, tongue, and mucosal tissue. This coloration of the blood is the result of the accumulation of the bile pigment biliverdin in levels that would be toxic in all other vertebrates.