Harlequin shrimp, is usually cream colored or white with occasional spots,they reach about 5 centimetres in length, live in pairs and feed exclusively on starfish. It does seem to prefer smaller, more sedentary starfish, but if it is not sufficient for its needs, it will attack Acanthaster, both reducing its consumption of coral while under attack, and killing it within a few days. When it comes to males and females, the females are larger and have colored abdominal plates unlike the males.
This anemone is generally green with pink or purple tipped tentacles. The exact shade of green varies depending on the presence and ratio of two single-celled symbiotic organisms in its tissues; a green algae and an olive or golden brown dinoflagellate. Without the symbiont, they appear grayish or white except for the pink on their tentacles.
For the developers at New York start-up Networked Organisms, smartphones are the butterfly nets of the 21st Century. Their tool, Project Noah, lets people upload photos of plants and wildlife around them, creating a map of the natural world and contributing to scientific research in the process.
Bespectacled scientists of yore would carry around hefty field guides, made up of hundreds of pages of text and photos. But these days, smartphone owners have a lighter option: an app called Project Noah, which aims to help people identify plants and animals as well as collect data from "citizen scientists" about where certain species are located.
Project Noah enables us to be part of a more focused online community where we can learn more about wildlife around us and contribute to scientific research. It pulls participants into deeper, more meaningful engagement by enabling people to go on “missions” to collectively map changes based on sightings.
A modern invention that may also hold the key to saving species in the future. Project Noah is a global study that encourages nature lovers to document the wildlife they encounter, using a purpose built phone app and web community. In addition to the virtual "collection" of species, Project Noah encourages citizen science by linking up with existing surveys including the International Spider Survey and the Global Coral Reef Monitoring Network.