The sharpest weapon of most sharks are their teeth. On the inside of the jaw are many teeth: Behind each front tooth there are up to 15 rows of replacement teeth. In the course of its life, a shark grows up to 30,000 teeth. Author: ZDF/Terra X/R. Marel/S. Hillmann/C. Gerisch/A. Kindler/SpiegelTV/Ma
The managing director of the Hengsen waterworks explains the steps involved in extracting drinking water from the river water of the Ruhr. This process takes three to four days. Author: 3sat/nano/Spiegel TV/Christine Voges/R. Engelke/S. Karim/F. Gutsche/J. Heck/B. Asgari/K. Scheef/F. Buscha/Tim Ku
The clitoris is part of the female genital. Only the glans clitoris is visible. Most of the organ is located inside the pelvis. https://www.zdf.de/dokumentation/terra-x/anatomie-der-klitoris-creative-commons-clip-100.html URL to full docu: https://www.zdf.de/dokumentation/3sat-wissenschaftdoku/vu
The entire externally visible female genitalia is called the vulva. The internal vagina connects the vulva to the cervix and uterus. Source: https://www.zdf.de/dokumentation/terra-x/anatomie-von-vulva-und-vagina-creative-commons-clip-100.html URL to full doc: https://www.zdf.de/dokumentation/3sat
Subscribe Here: https://bit.ly/2roHKoB Have you prepared everything for Halloween party? Our preparing is in full swing! And today we want share with you 15 new cool ideas for Halloween, to make it the coolest holiday of this year! Supplies: • Line • Doll’s arms and legs • Beads • Chain • Artificia
Subscribe Here: https://bit.ly/2roHKoB Don’t you’ve a day without pranks? Is that your motto? Then you'll surely like our new selection of pranks for mortal prank war with friends. So, let's begin our battle! Supplies and tools: • Warning tape • Wax crayon • Paper • Pencil • Book board • Pen • Scis
The theory of evolution states that individuals within a species show wide degrees of variation, and those individuals with characteristics best suited to their environment are more likely to survive and reproduce. This theory grew from studying the variations and similarities in living animals and
The sperm whale is the largest toothed whale. They have 20-26 teeth on each side of their lower jaws. Technically they have upper teeth, too, but these are vestigial and rarely erupt. Sperm whales are deep ocean dwelling animals making dives up to 6,500 feet (2,000m) to find food in the form of gian
Antlions are the things of nightmares. Apparently there are people who don't believe these animals exist, but they are absolutely real. Antlions are also known as doodbugs and they build pitfall traps for any would-be passersby insects who are unfortunate enough to fall in. At the center of these pe
