:00:23. > :00:22.Ricky here with your last Newsround of the weekend.
:00:23. > :00:22.First up, a very happy birthday to Sir David Attenborough,
:00:23. > :00:22.one the world's most famous wildlife explorers
:00:23. > :00:28.We've been taking a look back at his epic career.
:00:29. > :00:28.Even before colour TV, David Attenborough was travelling
:00:29. > :00:30.around the world to explore remote areas
:00:31. > :00:36.For more than 60 years now, he has been
:00:37. > :00:38.bringing back amazing footage of rare animals, plants and insects,
:00:39. > :00:43.These engaging chicks are so inquisitive
:00:44. > :00:49.that you only have to sit down to their own level for them all to
:00:50. > :00:51.gather around you to try and discover what sort of
:00:52. > :00:58.He is so influential he has 30 honorary degrees, a knighthood,
:00:59. > :01:01.and even had new species named after him, including a type
:01:02. > :01:06.of spider, a flesh eating plant and a fossilised fish.
:01:07. > :01:10.No museum in the world has a complete specimen of this species.
:01:11. > :01:13.Human beings exterminated it in the middle of the 17th century.
:01:14. > :01:16.There are a lot of animals today that face
:01:17. > :01:21.He's used his programmes to tell people about
:01:22. > :01:27.different animals that need protection from extinction.
:01:28. > :01:30.Some of his biggest admirers include US President Barack Obama and CBBC's
:01:31. > :01:34.My earliest memories of Sir David Attenborough were watching his
:01:35. > :01:36.Zoo Quest series, which was quite a long time ago now.
:01:37. > :01:40.I instantly thought, that is amazing,
:01:41. > :01:45.that is what I want to do with my life.
:01:46. > :01:48.Attenborough often gets up close and personal with the
:01:49. > :01:56.His unique voice and enthusiastic descriptions are his trademark.
:01:57. > :01:59.These are greylag geese, the same species that
:02:00. > :02:05.David Attenborough has changed the way many people see and think
:02:06. > :02:22.From everyone here at Newsround, a very happy birthday.
:02:23. > :02:26.Contestants from all over the world were taking part in
:02:27. > :02:29.the International Tightrope Contest held in East China.
:02:30. > :02:32.Yes, it's the third International Highline Tight
:02:33. > :02:37.16 top contestants with nerves of steel.
:02:38. > :02:44.Walking 400 metres in the air, on a rope, only 25 millilitres wide.
:02:45. > :02:49.They're not allowed to carry a balancing pole.
:02:50. > :02:51.The final two contestants raced across the rope trying
:02:52. > :03:00.His advice to anyone giving this a go, "Don't look down
:03:01. > :03:15.Now, it's often been said by experts that we know more about the moon
:03:16. > :03:19.Now, new images reveal a weird and wonderful world two and a half
:03:20. > :03:23.A new world is being explored by this robot submarine.
:03:24. > :03:24.The deepest waters on planet Earth revealing
:03:25. > :03:35...That even the scientists are surprised by.
:03:36. > :03:37.Illuminous jellyfish, a sea cucumber,
:03:38. > :03:39.these images have been streamed live for scientists
:03:40. > :03:44.It really is a place of wonder and beauty.
:03:45. > :03:54.have the chance to go through and make sense
:03:55. > :03:56.of it as scientists later but the
:03:57. > :03:59.colours, the delivate lifeforms down there.
:04:00. > :04:02.it is just astounding the intricate wonders that nature has.
:04:03. > :04:04.It's not just the creatures that are being
:04:05. > :04:13.Rubbish too has found its way to the bottom of the trench.
:04:14. > :04:16.The pressure is huge down here and not a lot can survive.
:04:17. > :04:20.A species that adapted and branched out from sharks nearly
:04:21. > :04:23.They've remained isolated in the deepest
:04:24. > :04:30.What new wonders such expeditions will discover any future no one
:04:31. > :04:41.knows - but one thing is certain, that with project like this,
:04:42. > :04:44.they will be more accessible for us to see than ever before.
:04:45. > :04:48.Finally, just time to check out the strangest stories of the week.
:04:49. > :04:53.First up, the dancing police officers from New Zealand.
:04:54. > :04:55.They posted this video as part the running man
:04:56. > :04:57.challenge where people film themselves busting moves
:04:58. > :05:07.Other police forces have been getting involved,
:05:08. > :05:08.including these officers from Police Scotland.
:05:09. > :05:21.Who needs Guitar Hero when you can have this?
:05:22. > :05:23.More than 7000 guitarists playing a song
:05:24. > :05:40.And lastly, it's got thrills, it's got spills...
:05:41. > :05:45.Oh yes, this is the British Lawnmower Championships.
:05:46. > :05:47.This season has just kicked off in Surrey.
:05:48. > :05:49.Don't worry, the blades are removed from the mowers
:05:50. > :05:57.I'd like to see Lewis Hamilton on one of those.