Poi­sons f low in veins of great white sharks

The Buffalo News - - FRONT PAGE - – Char­lotte Ob­server

CHAR­LOTTE – Great white sharks – one of the ocean’s most fear­some apex preda­tors – thrive with toxic lev­els of poi­sons flow­ing in their veins, ac­cord­ing to a new study by OCEARCH.

Re­searchers re­cently came to that con­clu­sion af­ter tak­ing blood sam­ples from 40 white sharks off South Africa, ac­cord­ing to an April 3 re­port on OCEARCH.org. The sam­ples re­vealed “alarm­ingly high lev­els of poi­sonous heavy met­als, like ar­senic and mer­cury, in sharks’ blood,” the re­port said.

“De­spite lev­els of heavy met­als that would be toxic to most other species, white sharks seem to show no ill ef­fects,” said OCEARCH, a non­profit de­voted to col­lect­ing “pre­vi­ously unattain­able” ocean data.

The fact that white sharks flour­ish with poi­son in their veins is one of the “tricks” the species has used to sur­vive mil­lions of years, the re­port said. “White sharks are in­cred­i­bly tol­er­ant to what would es­sen­tially be poi­son to other species.”

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