Do the legs and arms pop out at the same time?

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janea
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Do the legs and arms pop out at the same time?

Postby janea » Tue Jan 29, 2008 6:50 pm

One of the little frogs in our pond was floating on it's back so I caught it in a cup and brought it inside. It had 2 back legs and no arms.. but a few hours later, I saw the left arm,. but the right arm hasn't popped out yet. I can see the arm moving inside a little "sack", it's like the frog is trying to force it out. Is this how it happens or could this frog have problems?

Cheers
Janea

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Aaron
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Postby Aaron » Tue Jan 29, 2008 7:33 pm

Hi Janea,

As far as I know the back legs always develop first in the tadpole and then the front legs develop last. In my experience its not unusual for there to be a delay between the development of the front legs, often I have three legged tadpoles swimming around and then the fourth leg sprouts before metamorphosis. It's a good sign if you can see the developing arm within the body cavity, it may just take a bit longer than the other to emerge.

Aaron

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GrantW
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Postby GrantW » Tue Jan 29, 2008 10:06 pm

The left arm generally comes out first cause its breaks out through the spiricle (the breathing hole) whereas the right arm has to break through skin so its harder. Back legs always (at least to the best of my knowledge) come first.

janea
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Postby janea » Wed Jan 30, 2008 5:44 pm

Thanks so much. This site has been a huge help to me. :)

This is a photo I took this morning. Can you see all the frogs in the photo? They LOVE the Mondo grass!!

http://i31.photobucket.com/albums/c354/2004wasgood/0-1.jpg?t=1201678903[/url]

janea
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Location: victoria

Postby janea » Wed Jan 30, 2008 5:47 pm

omg.. it worked!

Here are a few more. Can anyone (Grant?) tell me what breed the frogs are for sure?

Cheers!

http://i31.photobucket.com/albums/c354/2004wasgood/00000.jpg?t=1201679144

http://i31.photobucket.com/albums/c354/2004wasgood/Frogs2005.jpg?t=1201679234

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GrantW
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Postby GrantW » Wed Jan 30, 2008 6:14 pm

The 2 species are difficult enough to tell apart as adults and are much harder to tell apart as babies. From the photos I'm guess ewingii is more likely, but you can't really tell for sure until they are older or if you get photos of the colouring in the legs (which won't develop for another few months anyway).

Cheers,
Grant

janea
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Location: victoria

Postby janea » Wed Jan 30, 2008 7:06 pm

Thanks again. There are heaps of baby frogs emerging now and most of the tadpoles are getting legs now.

:shock:


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