Did Teeth First Evolve as Sensory Tissue?

One of the mysteries of evolution (there are so many) is the origin of teeth.


The Origin of Eukaryotes


Acoustic Communication in Animals

We are all familiar with vocalizations in the animal world. For example, dogs bark, birds sing, frogs croak, and whales send forth their own distinct sounds.1 Recently, a detailed investigation has been conducted to determine sounds made by animals previously thought to be mute.

Genomic Tandem Repeats: Where Repetition Is Purposely Adaptive


Aerobic and Anaerobic Hot Spring Bacteria

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