Scorch

black marks at the top of both flukes looks like scorch marks after heat is applied to cloth

Shamrock

the black mark on the top of the left fluke gives the impression of the leafy clover

Shockwave

the curving line on the inner part of the right fluke looks like a concussion wave moving out from a central explosion

Slapshot

two marks on the right fluke look like a hockey stick hitting a hockey puck

Soot

dark, splotchy coloration on both flukes looks like soot stains

Non-calves

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Calves

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