Investor frustration regarding the inability of most crude oil ETFs to successfully track the spot price of oil over time is well documented.

FORBES: Two New Oil And Gold ETFs To Watch

"To track and spot a wolf from an aircraft, land and then kill it, is not considered to be a fair chase method, " said Alaska Department of Fish and Game commissioner Frank Rue.

CNN: Aerial wolf hunting flies again in Alaska

But they said that understanding their genetic fingerprint would help them to quickly spot and track these strains if they spread further.

BBC: Parasite 'resistant to malaria drug artemisinin'