Paleontological and Paleobotanical Museum (Nostimo) teeth of a shark that was 20–25 m long, and a Late Pliocene (3.5 million years old) tooth of an "Anancus arvenensis", a mastodon, an ancient relative of the elephant, which has been recognised here for the first time in the wider area of Western Macedonia. The mastodon which lived in this area was about the same size as a modern elephant, but with longer tusks. Also displayed are some Neolithic tools (from the 4th millennium BC): a fishing weight, and a blade for harvesting crops. Paleontological and Paleobotanical Museum (Nostimo) The Paleontological and Paleobotanical Museum () at Nostimo is
Relative return a meaningful sense for absolute return strategies. After all, the neutral position of these portfolios is to be fully invested in cash without any other long or short positions. Thus, the risk-free rate is an appropriate benchmark to use for measuring the relative return of absolute return strategies. Relative return Relative return is a measure of the return of an investment portfolio relative to a theoretical passive reference portfolio or benchmark. In active portfolio management, the aim is to maximize the relative return (often subject to a risk constraint). In passive portfolio management, the aim is to obtain a relative