How many hearts does a turtle have? Sea turtles, like most reptiles, havethree-chambered hearts: two atria and one ventricle with a sinus venosus preceding the atria. Humans also have a sinus venosus, but only in early development – later it's incorporated into the right atrium wall. Which...
How does a squid swim?Squids:Squids are part of the Molluscs family. They have long, tube-like bodies with an inner shell called a pen. Squids have arms that extend from their bodies and are mistakenly referred to as tentacles. Squids do have two tentacles that remain hidden until they...
Its gills, hearts, digestive system and reproductive glands are all crammed into this one space. The strong muscles in the mantle protect the organs and help with respiration and contraction. The octopus also has a funnel, sometimes called a siphon, which is a tubular opening that serves as ...
It's been more than two years and we are still living in the shadow of Covid-19. There have been many pandemics through history, such as the Black Death, and our species has survived. Sam and Neil discuss how pandemics end, and teach you ...
I asked: How many cups of coffee do we consume in cafés or stores in the UK every year? Is it… a) 2.3 million b) 23 million or c) 23 billion? Rob I could sit in a cafe and use their free wifi to research the answer...
Human beings have always dreamed of flying through the clear blue sky -- and, in some ways, they've succeeded. Parachutes, jet packs, and planes, among many other technological marvels, let us find a way to blaze through the heavens. But human cannonballs take a unique path to the wild...
many times, there will come a time when the sum of all the parts becomes an integrated whole and becomes anautomatic internal intentionwithout the need for words. Ideally, this affirmation should be pure intention without words as the very nature of the English language is embedded with spells...
Even in Newfoundland, where we used to catch cod, we now have a jellyfish fishery. And another version of this sort of thing is what is often called red tides or toxic blooms. That picture is just staggering to me. I have talked about it a million times, but it's unbelievable. In ...
Yesterday, Facebook was down for a couple of hours. It got people thinking...what if it went away forever? What would happen to all of the photos I have saved there? How many of you have been saving all of your photos on Facebook as if it was your own personal scrapbook? First of...