What is the finger like bodies of fat atttached to the testis. Stores enough food energy to alow the frog to hibernate during winter.
Since this is not my area of expertise, I searched Google under the key words "frog hibernation fat testis" to get these possible sources:
http://www.jstor.org/pss/1564890
https://kb.osu.edu/dspace/bitstream/1811/3933/1/V52N03_169.pdf
http://www.springerlink.com/content/r1667646r5256132/
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6WP8-4KTXHYW-1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=bf1baa6c10a044b3259776ffe62b0d07
http://books.google.com/books?id=8Iyt9UwzaTAC&pg=PA11&lpg=PA11&dq=frog+hibernation+fat+testis&source=web&ots=EE4m15wKEw&sig=In_pjLYxM0B0yP_Ghbe9W2Kugbw&hl=en
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.
I hope this helps. Thanks for asking.