Development phase of an inflammation

If a foreign body penetrates the skin, phagocytes in the damaged tissue are the first to react. So-called M1-type macrophages release pro-inflammatory messenger substances. These include prostaglandins. These hormones trigger a pain stimulus. Author: 3sat/nano/DOCUVISTA Filmproduktion/Marilena Schulte,Maike Wurtscheid/Jörg Becker,Sergios Roth/Tatjana Theuer/Jochen Schmidt Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX

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Expansion of the Roman Empire

In its heyday from the first to the third century, the Roman Empire stretched across the entire Mediterranean region to Britain. Author: ZDF/Terra X/ Gruppe5/Sabine Klauser/Sebastian Martinez/Jochen Schmidt Translation and dubbing: alugha Click here to see more videos: https://alugha.com/TerraX

So entstand das letzte Eiszeitalter

Das Pleistozän dauerte fast 2,5 Millionen Jahre. Damals waren Nord- und Südamerika noch nicht miteinander verbunden, und das Klima war noch warm. Durch die Kontinentaldrift bewegten sich diese beiden Landmassen immer weiter aufeinander zu. Quelle: https://www.zdf.de/dokumentation/terra-x/so-entstan

Where are pilot whales sedentary?

More than 1000 pilot whales live between Madeira, the Azores and the Canary Islands. They have settled down there, since the sea around the island flanks offers ideal feeding conditions. Author: ZDF/Terra X/E. z. Eulenburg, I. Zink, Oliver Roetz, WENDEVARGA, Region Five Translation and dubbing: al