brad davi [s] is a bioing gift. a breakthrough that can feed the planet. a meat substitute. >> do they taste like chicken. >> we tut-tut it to the test. dr crystal dilworth is a molecular neuroscientist. tonight, inside the world of e-cigarettes. >> i'm never going back to cigarettes. >> what is the real science. kyle hill is an engineer, and i'm phil torres, i'm an entomoll gift. tonight spiders - one builds a deoi an amazing trip to peru. that's the team, now let's do some science. appear [ ♪ music ] >>> hi guys, welcome to "techknow", i'm here with kyle, marita and crystal. as an entomologist, i love a good challenge in the field, there's a scientific mystery that i went to the peruvian to try to solve. look at this weird circular structure. we went down with little information except for the fact that this thing was found on an island twice. take a look. >> reporter: onest best things about working in the rainforest is the adventure. join me on an expedition that's sure to get wet, whid and muddy. the peruvian youngle is a last wilderness with a huge p

brad davi [s] is a bioing gift. a breakthrough that can feed the planet. a meat substitute. >> do they taste like

brad davi [s] is a bioing gift. a breakthrough that can feed the planet. a meat substitute. >> do they taste like chicken. >> we tut-tut it to the test. dr crystal dilworth is a molecular neuroscientist. e-cigarettes.

brad davi [s] is a bioing gift. a breakthrough that can feed the planet.eat substitute. >> do they taste like chicken. >> we tut-tut it to the test. dr crystal dilworth is a molecular neuroscientist. e-cigarettes. cigarettes. >> what is the real science. kyle hill is an engineer, and i'm phil torres, i'm an entomoll gift. tonight spiders - one builds a deoi an amazing trip to peru. that's the team, now let's do some science. appear [ ♪ music ] >>> hi guys, welcome to "techknow", i'm here with kyle, marita and crystal. as an entomologist, i love a good challenge in the field, there's a scientific mystery that i went to the peruvian to try to solve. look at this weird circular structure. we went down with little information except for the fact that this thing was found on an island twice. take a look. >> reporter: onest best things about working in the rainforest is the adventure. join me on an expedition that's sure to get wet, whid and muddy. the peruvian youngle is a last wilderness with a huge population of endemic plant and animal species. they are foun

davis grounded to third. gets the play at second. nice play. athletics down, though, 1-0. bottom six, same score. brad mills' pitch hammered. jt martinez. two-run shot to left, his tenth of the year. 3-0, tigers. they go on to win, 3-0. >>> again, an underdog. the u.s. soccer team needing to be defensively perfect, and offensively opportunistic to pull off the upsets of the belgian. bay area fans gathering at the civic center in san francisco to watch team usa in the round of 16. scoreless into stoppage time. jermaine jones finding chris wondolowski in front. but he fires high and wide. a missed opportunity, one he'll never forget. still scoreless in extra time. devon debruyn. and they never gave up that lead. howard overall spectacular, making 16 saves. but the u.s. falls, 2-1. afterwards, the earthquakes star tweeted his disappointment. i'm gutted to have let down everyone. but especially my teammates. it's been an incredible ride, but i know this will make me stronger. howard feeling equally dejected as well. >> it's heartbreaking. we gave everything. i don't think we could have given anymore. what great game of football