Tell that to Mercedes-Benz Special Trucks though, which lists the poison dart frog as part of the inspiration behind its Unimog Concept, a line of heavy-duty vehicles celebrating its 60th anniversary this year.
The current Unimog is no oil painting, but the new one displays a distinctly Kermit-like color scheme. The open pickup body evokes the original 1951 Unimog and the huge tires and high ground clearance is a continuation of the Unimog's go-anywhere nature. The concept sits on the current Unimog U500's platform and Mercedes has made a feature of the heavy-duty coil springs by painting them bright red.
Mercedes-Benz says that some details from the Concept should make it onto future commercial vehicles.
Ugly as sin it might well be, but the concept points to a bright future for the Unimog, which after 60 years and 26 product ranges still continues to serve demanding customers like few other vehicles on sale.