VOA慢速英语:Minivan-sized Sponge Found off Hawaii Coast

presume - v. to think something is true without knowing it is true

intrigue - v. to make (someone) want to know more about something

shallow – adj. not deep

pristine – adj. clean and fresh as if new

invertebrate – n. an animal without a backbone

microbial – adj. having to do with microbes—tiny living things that can only be seen with a microscope

cephalopod – n. a kind of sea animal mollusk such as an octopus or squid.