The depths of theoceanare still filled with mysteries . scientist forever discover freaky fauna in our vast seas , from thegiant isopodto thefrilled shark . On a recent pleasure trip , scientist catalog a cast of creatures that looked like they cower off a spaceship .

According to theAustralian Broadcasting Corporation , Australian researchers came across the marine life while onboard the RSVNuyinaas part of the Denman Marine Voyage . The goal of the 60 - Clarence Day journeying across the Southern Ocean is to study the result of rise sea temperature on the Denman Glacier , one of the fastest - melt glaciers in East Antarctica , which lost 3.1 mil of its distance between 1996 and 2018 .

While at ocean , the scientists trawl up some unusual critter . Thesea pigwas among the most bizarre - look . While these toxicant sea cucumbers are n’t biologically have-to doe with to the stock , they share the same name because of their similarly easygoing , sausage - shaped body and short peg . They ordinarily grow 1.5 to 6 inch long and salvage for decay matter and carcase at 4000 to 16,000 foot deep .

The sea pig in all its squishy glory.

Scientists also got their hand onsea spidersduring the voyage . Despite their name , sea spiders are more closely link up to Cancer , but like arachnid they have an exoskeleton and eight leg . Sea spiders ( course of study Pycnogonida ) are divers , with over 1300 coinage . The researchers get sea spiders that are as large as a human hand , but some specie can grow up to 20 inches in peg span .

The researchers used a “ stiff well , ” which keep sea animals healthy after aggregation , to prove ticklish creatures likeClio pyramidata , a species ofsea butterfly stroke . This minuscular ocean snail ’s diet include phytoplankton and juvenilecopepods , tiny crustaceans found in nearly all marine habitats . They usually grow up to nine millimetre ( about 0.35 inches ) long . lively Sciencereports that the ocean butterfly the scientist catch position eggs on the ship , allowing the scientists to study the coinage ’ egg development for the first metre .

While these species were previously roll in the hay to science , the investigator say it ’s likely that some undiscovered species were also included in their haul . you could continue up - to - date on their journey via the Denman Marine Voyagepage .

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