0:00:00 > 0:00:08See you.
0:00:16 > 0:00:18Morning, I'm Ricky, it's Friday and you are live
0:00:18 > 0:00:19with Newsround on CBBC.
0:00:19 > 0:00:23All this on the way...
0:00:23 > 0:00:29How a fly's eyes make it a deadly hunter.
0:00:29 > 0:00:33And the new 3D printed hand built at a school.
0:00:33 > 0:00:35But first to the Great Barrier Reef, off the coast
0:00:35 > 0:00:36of Queensland in Australia.
0:00:36 > 0:00:38It's the largest living thing on earth,
0:00:38 > 0:00:41and even visible from outer space.
0:00:41 > 0:00:43But scientists say it has been hit by widespread bleaching
0:00:43 > 0:00:46of its corals for the second year in a row.
0:00:46 > 0:00:48The first aerial survey of 2017 shows large areas
0:00:48 > 0:00:50of the reef have been damaged by high water temperatures.
0:00:50 > 0:00:56Experts say they're worried about the reef's long-term health.
0:00:56 > 0:00:58Next up, the scientists getting a fly's-eye view of the world.
0:00:58 > 0:01:01This insect has some pretty impressive eyes and researchers have
0:01:01 > 0:01:07been finding out how they help them to be so good at hunting.
0:01:07 > 0:01:13This tiny robber fly is the size of a grain of rice but can pinpoint
0:01:13 > 0:01:14and catch prey in midair.
0:01:14 > 0:01:17It locks onto its target in less than a second.
0:01:17 > 0:01:20It's all down to the robber fly's eyes.
0:01:20 > 0:01:25They have large lenses and a lot of really tiny sensors which allow
0:01:25 > 0:01:27them to spot and lock onto their prey.
0:01:27 > 0:01:37This means they can really see well.
0:01:40 > 0:01:42In fact, the small fly has the same detail of vision
0:01:42 > 0:01:43of a much larger dragonfly.
0:01:43 > 0:01:46Researchers used high-speed cameras to show how the fly positions itself
0:01:46 > 0:01:49to capture moving prey, and found out that the fly
0:01:49 > 0:01:51keeps its victim in its line of sight the whole time.
0:01:51 > 0:01:54The next step for scientists is to find how the fly's brain takes
0:01:54 > 0:01:59this information and turns it into action in the blink of an eye.
0:01:59 > 0:02:03Now to the 3D printed hand which has been made at a school.
0:02:03 > 0:02:06It's for Andrew - he was born with a condition which means one
0:02:06 > 0:02:09of his hands is smaller and less developed than the other.
0:02:09 > 0:02:11It will help him grip things more easily.
0:02:11 > 0:02:14The hand was made at a school which is the only one in the UK
0:02:14 > 0:02:15to have a manufacturing lab.
0:02:15 > 0:02:21I do enjoy helping people, and I think this is something that
0:02:21 > 0:02:24really would leave a big impact on his life.
0:02:24 > 0:02:30It's also good for us because we can learn more about it
0:02:30 > 0:02:32and how it's made.
0:02:32 > 0:02:37We want to give him the opportunities that he should be
0:02:37 > 0:02:44able to do at such a young age.
0:02:44 > 0:02:50Football now, and this weekend it's the FA Cup quarterfinals.
0:02:50 > 0:02:52And taking on the mighty Arsenal, are non-league Lincoln City,
0:02:52 > 0:02:54who made it through thanks to a dramatic last minute winner
0:02:54 > 0:02:55who made it through thanks to a dramatic last minute winner
0:02:55 > 0:02:56against Premier League team Burnley.
0:02:56 > 0:02:58Can they do it again?
0:02:58 > 0:02:58Can they do it again?
0:02:58 > 0:02:59Can they do it again?
0:02:59 > 0:03:00Can they do it again?
0:03:00 > 0:03:02We asked some young fans.
0:03:02 > 0:03:03ALL: Come on, Lincoln.
0:03:03 > 0:03:04Hi, I'm Kieron.
0:03:04 > 0:03:05Hi, I'm Josh.
0:03:05 > 0:03:06Hi, I'm Charlie.
0:03:06 > 0:03:07ALL: We all play for Lincoln Academy.
0:03:07 > 0:03:08Welcome to our club.
0:03:08 > 0:03:10COMMENTATOR: One last chance for the Lincoln
0:03:10 > 0:03:11centre-halves to come forward.
0:03:11 > 0:03:13Sam Habergham will sweep this in left-footed.
0:03:13 > 0:03:15To the far stick it goes, headed back across goal!
0:03:15 > 0:03:16Raggett!
0:03:16 > 0:03:18Oh, I thought it was in!
0:03:18 > 0:03:19It is in!
0:03:19 > 0:03:22And Lincoln City, of non-league football,
0:03:22 > 0:03:25of the National League, take the lead at Premier League
0:03:25 > 0:03:27Burnley with a minute to go!
0:03:27 > 0:03:32Lincoln have made history!
0:03:32 > 0:03:35It's the first time ever in our history that we've got
0:03:35 > 0:03:36this far in the FA Cup.
0:03:36 > 0:03:38People around Lincoln are very excited for
0:03:38 > 0:03:43the quarterfinals against Arsenal.
0:03:43 > 0:03:45It's really inspired me because Lincoln have just made
0:03:45 > 0:03:47everybody try harder and work harder because you know
0:03:47 > 0:03:50you can do that well.
0:03:50 > 0:03:52If we got through to the semifinals it would be
0:03:52 > 0:03:53amazing to go to Wembley.
0:03:53 > 0:04:00I think Lincoln could do well.
0:04:00 > 0:04:04They'll do well if they scored, and if they won it would be amazing.
0:04:04 > 0:04:07I think Arsenal need to watch out for Matt Rhead and Nathan Arnold.
0:04:07 > 0:04:10I think Matt Rhead will bully their defence and Nathan Arnold
0:04:10 > 0:04:11will be really quick.
0:04:11 > 0:04:14I'm a bit worried of what Sanchez and Ozil can do because they're
0:04:14 > 0:04:15both great players.
0:04:15 > 0:04:17I really want to play for Lincoln when I'm older.
0:04:17 > 0:04:20Watching this FA Cup has been amazing, it's really inspired me.
0:04:20 > 0:04:29My prediction is 2-1 to Lincoln.
0:04:29 > 0:04:31I predict 2-0 Lincoln, Matt Rhead and Luke Waterfall to score.
0:04:31 > 0:04:321-0 Lincoln.
0:04:32 > 0:04:332-1 to Lincoln.
0:04:33 > 0:04:34Probably 2-1 Arsenal.
0:04:34 > 0:04:38COMMENTATOR: This is the first time in 103 years that the FA Cup has
0:04:38 > 0:04:39a non-league side in the last eight!
0:04:39 > 0:04:44Good luck, Lincoln.
0:04:44 > 0:04:48You can do it.
0:04:48 > 0:04:51You can do it in the quarterfinals against Arsenal.
0:04:51 > 0:04:53Good luck, Lincoln, I hope you win against Arsenal.
0:04:53 > 0:04:54I hope you're going to do amazing.
0:04:54 > 0:04:55We can do this!
0:04:55 > 0:05:00That's all from me, Newsround's back right here in about half an hour.