Comment by sfilmeyer

>dangerously high levels of mercury

All the better for a tuna substitute!

More seriously, from your article

>4.86 mg/kg in liver tissue from a snake that was 4.7 m long but overall averaged 0.12 ± 0.19 mg/kg in tail tip

Tuna looks like it's about 0.39 mg/kg, so the liver tissue is suuuuper high but the tail tip is just normal high mercury.