| View previous topic :: View next topic |
| Author |
Message |
zarozinia
CaptiveBred Addict!
Joined: 25 Nov 2004
Posts: 894
Location: Lost in my own little world
|
 Posted: Tue Oct 31, 2006 7:48 pm Post subject: Frog eggs are intelligent! |
 |
|
Every now and then I buy myself a copy of national Geographic. This time I was tempted into buying it for an article about Reinhold Messner, one of the world greatest mountaineers.
Then I came across a delightful article about Red eyed tree frogs and ad to share this with you all.
quote-
" A.callidryas embryos have evolved a safety net. If attacked, they can hatch in seconds, and up to two days prematurely, dropping to safety in the water below. And what most astonishes scientists, is that the animals can distinguish a predators attack from a shiver of wind or a wash of rain through the vibrations in the egg jelly. Embryos judge whether the threat is real by how often the vibrations come and how long they last. The eggs even react differently to different assailants.
It turns out that when a snake bites into the gooey mass, all the embryos try to wiggle free. A wasps more focused attack prompts only neighboring eggs to hatch. And a rainstorm triggers nothing at all."
A very interesting article.
_________________
Cheers Angi
Proud to be a Geordie!
My Images - http://anginelson.deviantart.com/
 |
|
| Back to top |
|
 |
JStroud
Site Moderator
Joined: 10 Dec 2004
Posts: 4095
Location: Bucks
|
| Posted: Wed Nov 01, 2006 3:43 pm Post subject: |
|
|
It is very interesting, thanks. Do you have an article number/author details available? Thanks for the post! 
_________________
Regards James Stroud |
|
| Back to top |
|
|
zarozinia
CaptiveBred Addict!
Joined: 25 Nov 2004
Posts: 894
Location: Lost in my own little world
|
| Posted: Wed Nov 01, 2006 4:43 pm Post subject: |
|
|
The author is Jennifer S Holland and its in the November 2006 edition
_________________
Cheers Angi
Proud to be a Geordie!
My Images - http://anginelson.deviantart.com/
|
|
| Back to top |
|
|
zarozinia
CaptiveBred Addict!
Joined: 25 Nov 2004
Posts: 894
Location: Lost in my own little world
|
|
| Back to top |
|
|
JStroud
Site Moderator
Joined: 10 Dec 2004
Posts: 4095
Location: Bucks
|
| Posted: Thu Nov 02, 2006 2:37 pm Post subject: |
|
|
Thank you!
_________________
Regards James Stroud |
|
| Back to top |
|
|
|
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
