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Geosesarma is genus of small freshwater or terrestrial crabs, typically less than 10 mm (0.4 in) across the carapace. [2] They live and reproduce on land with the larval stages inside the egg. They are found from India, [3] through Southeast Asia, to the Solomon Islands and Hawaii. [2] In the pet trade, they are sometimes called vampire crabs.
The crabs can travel up to 1.46 km (0.91 mi) in a day, and up to 4 km (2.5 mi) in total. [4] Only a few land crabs, including certain Geosesarma species, have direct development (the mother carries the eggs until they have become tiny, fully developed crabs), and these do not need access to water to breed.
Geosesarma dennerle is a species of small land-living crabs found on Java, Indonesia. [1] It is popular in the aquarium trade, [1] where G. dennerle, in particular, is often simply called Vampire Crab. Crabs called "Geosesarma bicolor Krakatau Vampirkrabbe" are probably also G. dennerle. [1]
Coral reefs are experiencing heat stress due to rising ocean temperatures, but researchers are using crabs to help the coral thrive.
Cardisoma guanhumi, also known as the blue land crab or great land crab, is a species of land crab found in tropical and subtropical estuaries and other maritime areas of land along the Atlantic coast of the Americas from Brazil [2] and Colombia, through the Caribbean and Gulf of Mexico, to the Bahamas, and north to Ponce Inlet, Florida [3] Princess Place Preserve in Palm Coast, and Bermuda. [4]
Crabs are decapod crustaceans of the infraorder Brachyura (meaning "short tail" in Greek), which typically have a very short projecting tail-like abdomen, usually hidden entirely under the thorax. [ a ] They live in all the world's oceans, in freshwater , and on land .
When stone crabs are caught, one or both claws are removed and the crabs are returned to the water, where the claws re-grow. That’s right: stone crab claws re-grow, so the crab doesn’t need to ...
Geosesarma hagen is a species of small land-living crabs only found in Java, Indonesia. The crabs prefer a humid environment with elements from both terrestrial and freshwater aquatic habitats. They steer clear of drier land and although the younger crabs tend to live in closer proximity to the water, they are not aquatic crabs.