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Ancient Sharks Had Teeth like Fish-Spears

Intercontinental Land Bridges May Have Been Isthmuses

Christmas Trees Should Fall as Martyrs to Better Forests

Limestone Slab Identified as Base of Famous Delphic Oracle

Change in Soil Texture Keeps Roads from Freezing

Nature Ramblings: Hermit Crab

Research Reveals Insulin as New Member of Protein Group

First Glances at New Books

Front Matter

Prevention of Tooth Decay Accomplished for First Time

Non-Poisonous Alcohol Made in England from Sawdust

Splitting of Primeval Star May Have Made Solar System