As an Evangelical and a scientist, Katharine Hayhoe is already a member of a rare breed. As a climate change researcher who is also married to an evangelical Christian pastor, she is nearly one of a kind.

This BioLogos videocast addresses the age of recently discovered hominid fossils and how scientists are able to obtain those dates.

In 1967, biologists Roger Payne and Scott McVay discovered that humpback whales “sing” and published recordings of the whales’ complex vocalizations, after which “whale song” quickly entered the popular consciousness and helped propel the “save the whales” environmental movement forward.

In today's video, Oxford physicist Ard Louis discusses the famous debate between renowned evolutionary biologists Stephen Jay Gould and Simon Conway Morris over the idea of evolutionary convergence.

In this video, Brian McLaren discusses the idea of surrogate arguments, in which a debate over one thing is really a means for arguing something completely different. According to McClaren, the argument over the age of the earth is one such argument.

Geologist Keith Miller examines the "Cambrian Explosion", a period of rapid evolutionary diversification approximately 575 million years ago, and whether it poses a challenge to evolutionary theory.

In our sixth BioLogos videocast, we take a look at the age of the Earth. We explain four methods scientists have used to determine that age: tree ring, lake varve, radiometric, and seafloor spread dating, and also offer some theological insight on how an old earth can fit with the first chapters of Genesis.