It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Some species of present day protists contain living organisms within their cytoplasm. For example, Paramecium bursaria are hosts for zoochlorellae, photosynthetic protists, that reside within the cytoplasm. The relationship appears to be symbiotic. The endosymbiont gains protection and possibly some essential nutrients from the host cytoplasm. The host has a readily available food source when its usual food source is depleted. If you have the opportunity to observe P. bursaria, note that the endosymbionts are not incorporated into food vacuoles. They are residents within the cytoplasm itself, and either are descended from organisms that survived endocytosis or have some mechanism for escaping food vacuoles once they are ingested.
Originally posted by Monsterenergy791
---A comet's tail can reach 93 million miles in length, but the total amount of vapor and dust it emits can fit into the trunk of a car.
Originally posted by Nova
I just wanted to say something more about the first part of the original post rather than a cool science fact. I've never read Bryson's book although I've read some of his travel books.
One thing I'd like to see more of on ATS is member book reviews. There are a lot of books out there on alternative subjects, some are brilliant, some are absolute bilge.
I'm currently reading The Secret History of the World by Jonathan Black and the jury is still very much out. Sorry for the slight off topic!
Originally posted by Ace High
reply to post by DaMod
Thanks for the additional facts, really cool stuff....
With regard to the Blue Whale, it mentioned in the book that it has blood veins large enough for a human to swim through!!
Originally posted by Ace High
Here are a couple more I thought were cool:
Without assistance, the deepest (in the ocean) anyone has gone and lived to talk about it afterward was an Italian named Umberto Pelizzari, who in 1992 dove to a depth of 236 feet, lingered for a nanosecond, and then shot back to the surface. In terrestrial terms, 236 feet is just slightly over the length of one New York City block. So even in our most exuberant stunts we can hardly claim to be masters of the abyss.
edit on Sun Jun 14 2009 by Jbird]