Search results for “vertebrates”

The Evolution of the Hand

Paleontologists estimate that around 380 million years ago, there were fish with pectoral fins that already had finger-like bones. And from those, the limbs of vertebrates evolved. The skeleton of these limbs follows the same basic blueprint: Authors: ZDF/3sat/Marco Polo Film AG/Herbert Ostwald/Hol

Melatonin Release and the Body's Rhythm

The pineal gland regulates the body’s day-night rhythm through melatonin release. So when it gets dark and hardly any light reaches the eyes, it releases melatonin. Higher melatonin levels make us tired. Authors: 3sat/NANO/Logo (Marco Polo Film AG)/S. van Iersel, T. Visser, A. Scheurich/ Armin Rieg

What happened during the Cambrian explosion?

Around 500 million years ago, where the Atlantic is today, the Iapetus Ocean existed, a vast primordial sea dividing the continents of the time. In these waters, an evolutionary explosion unfolded. Authors: ZDF/Terra X/O. Gurr/L. Bockius/E. Jesse/KawomGbR/K22/M. Heß Translation and dubbing: alugha

The Powerful Placebo Effect in Modern Medicine

A placebo is a treatment with zero therapeutic value but magical healing power. To understand better how placeboes work, let’s look at Mr. and Mrs. Martin, who both suffer chronic back pain... This video was made with the support of our sponsors: Avigail, Badrah, Cedric Wang, Eva Marie Koblin, da7

The Placebo Effect

A placebo is a treatment that has no therapeutic effect, but still heals, as if by magic. Common placebos include sugar pills, saline injections, other treatments, and surgeries that are completely played. Placebos are particularly effective in treating pain, chronic stress-related diseases such as