Which animals regenerate limbs

Their findings were published in November in the journal Scientific Reports. Regrowing limbs—especially alligator tails—isn't easy, so the investment has to be worth it in the long run. For a young gator, regrowing a lost tail "has obvious fitness benefits," Adam Rosenblatt, a biologist at the University of North Florida who was not involved in the study, tells National Geographic. He says that juvenile alligators are "on the menu for pretty much every predator out there. This study also brings up new questions about how regeneration evolved in reptiles.

Some dinosaurs—the ancestors of both alligators and birds—had the ability to regrow new limbs. The two lineages diverged around million years ago, but alligators have retained the ability to regenerate while birds have not, according to a press release.

Studying how reptiles regenerate their limbs could have implications for developing regenerative therapies for people living with arthritis or other injuries, reports Simone Jasper for the Miami Herald. To obtain the best experience, we recommend you use a more up to date browser or turn off compatibility mode in Internet Explorer. In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

A killifish regrew its tail only six days after the appendage was clipped at the brightly dotted horizontal line. Credit: Dr Wei Wang. Scientists have pinpointed gene-activating stretches of DNA that help animals to regenerate limbs, fins and other tissues. Science Download references. Outlook 27 OCT Outlook 29 SEP To test this, scientists are working diligently to develop new tools that will allow them to identify other targets and begin transferring these insights to mammals like mice, meaning that perhaps one day, the millions living with lost limbs will have a new avenue for treatment: regeneration.

Looking to the future: What we are is a long way from ethical code of conduct in the scientific animal studies. Repeat amputation? I understand how this particular study has benefited a potential to future human medical procedures, but have we absolutely no conscience at all?

What kind of a person could design a study that inflicts repeated harm on an animal? There must be a smarter way. I would never be so naive to think that we know everything about how animals experience pain. Forgive me. For as interesting the discovery, and well-written the article, I found myself reacting pitifully to the barbaric treatment of a living creature that I know is widespread in the scientific world.

There are many people that are critical about the use of animals in experiments, but at the same time they enjoy the advantages that came from such experiments. What is more, aside from voicing their oppinins about the use of animals in experiments, they do not come up with alternatives. Very sensible and well-put comment; I totally agree!

Knowledge and discovery come at a price; and new discoveries deserve proper respect and responsible use. You can easily monitor it among a population of them or from breeders. The shop I purchased mine from has tons of babies and since they do not have their sense of smell yet many of the babies do not have arms, legs or tails because the alpha babies will eat the the smaller ones limbs if it is in front of their mouths.

What do you meanby that, they need energy kcal in order to reproduce the new limb so if they eat themselves what is the profit? You are insane to say the least.. Research like this helps the human race to have a better future. So whatever options we have we should cling onto it.. It is probably the only reason I left a whole career in medicine.

My specific interest was to regrow human limbs. I have dreamt of this ever since I was a child. I would suggest using electromagnetic fields in conjunction with gene manipulation, in our method for re-growing human limbs. Although it could be a fascinating feat for humans to learn to regrow limbs too, there must be a way to do this without losing our humanity.

Just look at how cute these lotls are! The frog had gotten smashed under stairs to a mobile home. I regenerated not only his dehydrated body, but grue back his leg to normal nail grow. Crippled children before these little critters till we learn or relearn how to do it on our own.

Let the children thrive. You can buy them online but you pay for express shipping. Many local pet store can get their hands on them they are a handful but easy to take care for if you just make sure your axolotl is in brackish water. Also make sure its an axolotl and not a mud puppy they look exactly the same but axolotls never mature and stay in a juvenile state while a mud puppy will mature into a salamander.

They require cold water. Around 65 degrees. Thats about it. Good filtration and a cycled aquarium. I always wondered what kind of people do that. What a waste. As an owner of an Axolotl the regeneration ability of them are amazing. My axolotl lost five of his six gills due to a fungi infection and they have fully regrown in 5 days.

They will also eat their own arms, legs and tails to keep themselves fed with their limbs growing back quickly. When my axolotl was growing he ate his tail and it regrew in a week once I found the amount of food he required.

Chimera axolotls are amazing because they will be split right down the middle two different colors and can be both male and female depending on which embryos merge. I have a few and would like to try and breed them. I was told that I need to gradually drop the temperature and eventually raise the temperature back to 18, thereby mimicking what happens in nature. How can this be achieved practically?

How old are your axolotls? They usually reach sexual maturity at around months. I completely agree! I would love a Chimera axolotl, especially if it was partially leucistic, partially golden albino. Mines ate his hand like 3 times. Its been like 2 months or longer now.

Remember what it said in the article? Axolotls can only regenerate a limb so many times before the ability is reduced. Hurting without cause is barbaric.

Get back to me when you can cure that disease and we will see if that helps this problem. I bet if you tried to get a group of diabetics to give up meat and animal products they would start to get better and their limbs would be fine. And do you really need to know how many times they can regrow a limb? Are we going to war with machetes? How many times do you think a person will need to regrow a limb?