Correct selection of an appropriate animal mode to closely mimic human extremity diseases or to exhibit desirable phenotypes of limb regeneration is the first critical step for all scientists in biomedical and regenerative researches. The commonly-used animals in limb regeneration and repairing studies, such as
axolotl, mice, and rats, are discussed in the
review and other models including cockroaches, dogs, and horses are also mentioned. The
review weighs the general advantages, disadvantages, and precedent uses of each model in the context of limb and peripheral injury and subsequent regeneration. We hope that this
review can provide the reader an overview of each model, from which to select one for their specific purpose.