José García-Arrarás

Sea cucumbers and regeneration

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Holothuria glaberrima
Sea cucumber, Holothuria glaberrima.

Sea cucumbers are echinoderms commonly found in the coasts of Puerto Rico. Although they are called ìcucumbersî due to their morphology, they are not really plants, but animals. In Asia they are considered a delicacy, but in Puerto Rico they are not used as food. Instead, they are used by researchers to understand one of the biggest mysteries in biology: the process of regeneration. Certain organisms, like echinoderms, have regenerative capacities, and can grow new organs from scratch even as adults. Other organisms, such as mammals, have very limited regenerative capacities.

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