MoreSignsofTrouble
Gajićalsosawthatmanysharkshadeatenplastic.Hefoundpiecesinsidethem.Thismayalsocauseproblemsand disease.
Weretheseone-offcases?Wedon’tknow.Butwedoknow:Eachoftheseproblemscanbetracedto pollution.
![](/nationalgeographic/trailblazer_april_2020/more_signs_of_trouble_and_next_steps/707158/NGX0420_EE_22.640_0_1.jpg)
Gajićstudiessharksincaptivity, too.
NextSteps
Gajićhasmoreworkaheadinsharkstudiesandinconservation.Hewantspeopletobecomemoreawareofhowtheiractionsaffectmarine life.
Gajićsaystherearemanythingsthatkidscandotohelp.Dosomecitizenscience. Isthereabeachnearyou?Takeawalk.Youmayfindtheeggcasesofsomesharkorskatespecies.Takeaphoto.UploadittoiNaturalist.Helpscientistslearnwheresharknurserygroundsare.Evensmallactionslikethiscan help!
Learnasmuchasyoucanaboutsharks.Themoreweknow,theeasieritwillbetobuildaplanetin balance.
GajićencountersahugejellyfishinNeum Bay.
![](/nationalgeographic/trailblazer_april_2020/more_signs_of_trouble_and_next_steps/707156/NGX0420_EE_23.640_0_1.jpg)
skateeggcasefoundonabeachin Malta
![](/nationalgeographic/trailblazer_april_2020/more_signs_of_trouble_and_next_steps/707157/iNaturalist.256_0_1.png)
iNaturalistis acitizenscienceprojectandonlinenetworkofnaturalistsandcitizenscientistsbuiltontheconceptofmappingandsharingobservationsofbiodiversityacrosstheglobe.Tolearnhowtousethisfreeprogram,goto:www.inaturalist.org