SEA URCHINS BY MATIAS TOTZ
Background Info
There are almost 950 different species of sea urchins living in the oceans worldwide. These creatures’ shells can reach 3-10 cm long and their spikes are normally 1-3 cm long but a few of the species can have 10-30 cm long spikes. Sea urchins are normally either black, green, brown, purple, blue, or red. They have hundreds of tiny tube feet on the bottom of their shell which helps them move very slowly and stick to walls to reach algae, their main source of food.
There are almost 950 different species of sea urchins living in the oceans worldwide. These creatures’ shells can reach 3-10 cm long and their spikes are normally 1-3 cm long but a few of the species can have 10-30 cm long spikes. Sea urchins are normally either black, green, brown, purple, blue, or red. They have hundreds of tiny tube feet on the bottom of their shell which helps them move very slowly and stick to walls to reach algae, their main source of food.
Their Life Cycle
A few great beasts feed upon sea urchins including sea otters, starfish, wolf eels and triggerfish but other than these, there are not very many creatures who can feast upon sea urchins because they have protective spikes surrounding their body which help keep away any predators trying to break them open. In some unusual cases, people have accidentally stepped on sea urchins resulting in a lot of pain and a lot of unwanted poky spikes. “Urchin” comes from an old word for hedgehog, which have a very similar structure to sea urchins. Sea urchins are one of many unwanted surprises that may just find a way into your life… or foot. Sea urchins do not look like they can kill but on occasion they can bring down humans as did one when a tourist stepped on its loooonggg spikes filled with deadly venom.
Sources: https://en.wikipedia.org/wiki/Sea_urchin
A few great beasts feed upon sea urchins including sea otters, starfish, wolf eels and triggerfish but other than these, there are not very many creatures who can feast upon sea urchins because they have protective spikes surrounding their body which help keep away any predators trying to break them open. In some unusual cases, people have accidentally stepped on sea urchins resulting in a lot of pain and a lot of unwanted poky spikes. “Urchin” comes from an old word for hedgehog, which have a very similar structure to sea urchins. Sea urchins are one of many unwanted surprises that may just find a way into your life… or foot. Sea urchins do not look like they can kill but on occasion they can bring down humans as did one when a tourist stepped on its loooonggg spikes filled with deadly venom.
Sources: https://en.wikipedia.org/wiki/Sea_urchin
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