April 18, 2005 at 12:06 am #734zebkaikuParticipant
For my bio class i need to catch and make a two headed planaria, which has proven extremely difficult so far.
quick few questions for anyone who has any information:
1. How do i catch planaria? Teacher told us to use chicken liver… but where do i put it in the pond? on the surface or toward the bottom? Also what kind of pond is the best place to look for them, im in san jose california if anyone has any real specific spots in that area it would be awsome.
2. To make a two-headed planaria i stick them on a paper towel then i put them over ice, the problem i am having is that after i cut the planaria the heads refuse together and regenerate into one single head again.. anyone have any tips? any help would be great thanks so much.
April 18, 2005 at 8:42 pm #21479mithParticipant
Sear the wound like a barbeque steak?
April 19, 2005 at 1:44 am #21497biostudent84Participant
1. Place several chicken livers in the most active pond you can find…put each chicken liver at a different depth, light concentration, etc.
2. Continue cutting the split head at the fusing point until it ceases to fuse back together.
April 27, 2005 at 7:29 pm #21791MrMisteryParticipant
Two-headed planaria? Is this possible? Please do tell me more about how this is done, if you are so kind
May 8, 2005 at 8:19 pm #22268Canaduck_89Participant
Well, planaria can regenerate, and their ganglia is kind of split into two different parts at the posterior end. So if you cut down the middle of that (maybe you need to cut a little farther down) two heads will grow. It’s also possible to cut off it’s head, and it will regrow a head on one side and a tail on the other creating two planaria, you can also give it two tails and so on.
May 10, 2005 at 9:20 pm #22345thank.darwinParticipant
Planaria; what wonderful organisms 😀
September 18, 2006 at 3:15 pm #54994mlgParticipant
How do you go about actually catch the planaria? Do you put the Chicken Livers in something or are they fully exposed to any and all inhabitants in the pond?
September 19, 2006 at 9:04 am #55027Dr.SteinParticipant
Planaria inhabits clear, cold fresh water on shaded area. It prefers slowly flowing water-body e.g. stream.
Tips to fish Planaria:
– Tie some fresh liver (not only fron chicken but can be from anything) as a bait on your rope tip.
– Then leave your "special Planarian fishing rod" for some minutes. Tie the rope on something just like a cowboy tie his horse bridle so you won’t lose it.
– Check whether you already got your Planaria. They will attach on your bait.
– To remove them from your bait, dip the liver on a jar contains local water, shake it gently, they will detach. Don’t use tweezers, they wil hurt our delicate lovely creatures 😉
– To take care of them, keep the temperature of the water or they will be dying. You can keep them in clean refrigerator but avoid sharp smells around them coz they don’t like it.
September 24, 2006 at 7:14 pm #55316kasied07Participant
for your class! i wish i could do something unique like that
May 20, 2010 at 9:54 pm #99824CollinHCAParticipant
[color=#40FF00]I also have to catch a planarian, i have a perfect stream in my backyard. but can someone please tell me if you HAVE to use liver, or will any meat work?
May 21, 2010 at 9:25 pm #99845DarbyParticipant
The thing about liver, I think, is that it’s "juicy," and the planaria will pick up the "smaell" and track it to its source. They climb on it, extend their pharynx and as long as the meat moves gently, stay on it feeding.
August 29, 2011 at 7:52 am #106099Mickey56Participant
you could use a planaria trap with a little piece of meat or fish as bait.
November 23, 2013 at 10:04 pm #114774
January 15, 2014 at 12:35 pm #114959animartcoParticipant
There are lots of experiments you can do with planaria without cutting them up! Light sensitivity, what is their favourite smell? colour of substrate, how strong must the temptation be to make them cross a white line etc. The best thing is if you colour spot individuals, and find that some like to do one thing and others don’t.
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