Why is it that animals used to be so commonplace but now we need to take day trips to Ubin to see them? Turns out this is a bigger phenomenon at play!Karsts, rainforests - our constant demand for resources and unsustainable trade are pushing these ecosystems to the brink - and there's a real cost to biodiversity!Join @sankarology and @ohletsfly as they talk about this crisis and what we can do about it.