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Alledaagse Vragen
Hoe weet je nou ECHT of een dier is uitgestorven?
Beschrijving van de aflevering
Dagelijks sterven er diersoorten uit. Maar hoe weet je nou precies wanneer een dier er echt niet meer is? Je kan toch niet overal zoeken? Hoe zit dat nou? Dat vroegen we aan milieuwetenschapper Marc Huijbrechts.