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Design of Life Update: Marine Biology

The animal stars of Illustra Media's "Design of Life" documentaries are still in the news: this time, whales, dolphins, fish and sea turtles.

News from the Living Waters

Animal heroes of the Illustra film "Living Waters" are still making headlines.

More Holes in Evolutionary Theory

Here are three examples of animals not branching out neatly on Darwin's tree like they're supposed to.

Geology Theories Are Not Set in Stone

To be a geologist, you have to have a big imagination and always be ready to have your favorite theory overturned.

Sperm Cells Gain Respect

Millions of tadpole-like sperm cells rush to fertilize one egg. They deserve more respect than they often get.

Human Variability Can Be Rapid

All living humans are interfertile – one species by definition. People from all parts of the globe can marry and have children, even though global travel is relatively recent in human history. Yet we know there is considerable variability between tribes and nationalities. Does this variability take millions of years? Does it lead to the origin of new human species? Recent evidence shows that variations can be rapid, both genetic and acquired, without reducing interfertility.

Mighty Mitochondria Conduct Energy Exquisitely

None of us could live without mitochondria. These are the power centers ubiquitous in eukaryotic cells. They contain molecular machines in factories whose jobs are to generate and conduct electrical currents. The currents run turbines that packetize the energy in molecules of ATP, which are then used by most processes in the cell. New discoveries continue to fascinate scientists with how mitochondria work. Some scientists use their energy to find ways Darwinian evolution could build the machinery of life.