Topic
Marine invertebrates
4 questions tagged Marine invertebrates — spanning every one of the seven Ws.
why
Why do sea urchins have such sharp spines?
Sea urchin spines protect them from predators and help them move through rocky habitats. The spines can also trap drifting food and provide leverage on the seafloor.
AnimalsMarine invertebrates
why
Why do sea cucumbers eject their insides when threatened?
Some sea cucumbers use a defense called evisceration, expelling internal organs to confuse or deter predators. They can later regenerate much of the lost tissue.
AnimalsMarine invertebrates
what
What is a siphonophore?
A siphonophore is a marine animal made up of many specialized individuals that live together as one colony. Some, like the Portuguese man o' war, are famous ocean drifters.
AnimalsMarine invertebrates
where
Where is the blue-ringed octopus found?
Blue-ringed octopuses are found in tide pools and coastal waters of the Indo-Pacific, especially around Australia and nearby regions. They are small but highly venomous.
AnimalsMarine invertebrates