dr. crystal dilworth, a molecular neuroscientist. that's our team, now let's do some science. >> it's all worth it. >> hey guys, welcome to techknow. i'm phil torres, joined by dr. crystal dilworth and marita davison. so guys, picture this, you are deep in the rain forests of peru when suddenly a flock of red and blue magnificent creatures takes off in front of you. they are beautiful, but let me tell you, they don't start out so pretty. >> you have to be talking about macaws. i'm a bird biologist so in my day i've seen a lot of baby birds and i have to admit they are bald and can be pretty ugly but i mean its almost so ugly that they're cute. >> macaws are so associated with the rain forrest its almost like their mascot, but they're not so ubiquitous anymore, they're an endangered species and they're at risk because of habitat loss. >> absolutely, because when the habitat is in trouble, these birds are in trouble. we join a team of scientists down there, who are working hard to make sure that doesn't happen. let's take a look. >> daz

dr. crystal dilworth and marita davison. and, it sounds surreal to say but it's possible that within our lifetimes, all the coral reefs will be gone. >> scientists are saying that without some drastic changes, 100% of our coral reefs are facing degradation by 2050 which is only 30 years away. >> it could be an ecological disaster. >> and the problem is they are being attacked on all fronts, right now they're going through this coral bleaching event where all the corals are basically starving. >> yeah, and this bleaching event is affecting, right now, 40% of coral reefs worldwide, hawaii has been particularly hard hit, i got to go there to check it out and see if there's anything we can do to save the coral reefs. >> keno'ahe bay on the eastern side of oahu, hawaii. famous for clear blue seas and coral, rich in color and marine life. but now there's trouble in these waters. the coral is dying. in fact, reefs around the world are in trouble. we're here to find out why. >> some reefs have recovered much more quickly than others