:00:00. > :00:08.I'm Leah, and you're live with Newsround,
:00:09. > :00:12.Coming up: Saving the monkey puzzle tree - by growing
:00:13. > :00:25.And the robot that's the best golfer in the world.
:00:26. > :00:29.It's just six months to go until the start of the Olympic Games
:00:30. > :00:35.The athletes are in training and the venues are almost ready.
:00:36. > :00:37.But there are some problems still to deal with.
:00:38. > :00:41.The BBC's Wyre Davies is in Rio for Newsround.
:00:42. > :00:44.From a sporting perspective, everything looks pretty good.
:00:45. > :00:45.The four distinct Olympic venues around
:00:46. > :00:49.the city are coming on fine, and most of the stadium are nearly
:00:50. > :00:52.finished, and also the test events they have been holding
:00:53. > :00:55.here in the city are going pretty well.
:00:56. > :00:56.There is some cause for concern, particularly
:00:57. > :01:01.water quality here in the bay around the city, and also transport links
:01:02. > :01:05.between Rio and the main Olympic park.
:01:06. > :01:08.There's a new tube line which will only be finished a matter
:01:09. > :01:13.Now, two Russian cosmonauts have done a space-walk
:01:14. > :01:15.from the International Space Station.
:01:16. > :01:17.The pair are living with British Astronaut Tim Peake
:01:18. > :01:23.They went outside to set up some experiments and bring some tests
:01:24. > :01:29.There's a devastating virus that's destroying millions of colonies
:01:30. > :01:35.It can stop their wings growing properly, which stops them flying.
:01:36. > :01:39.British scientists says it's not caused by a problem in nature,
:01:40. > :01:42.but by the trade in moving honeybee populations around the world
:01:43. > :01:48.to areas where there aren't enough to pollinate the food we eat.
:01:49. > :01:53.Next - how do you protect trees that are in danger of disappearing?
:01:54. > :01:55.You collect sees from other countries and create the biggest
:01:56. > :01:59.The Monkey Puzzle Tree is one of those under threat.
:02:00. > :02:11.These are the unmistakable trickles of the monkey puzzle tree. They are
:02:12. > :02:16.found in many gardens, but in the wild they are in danger of dying
:02:17. > :02:21.out. So conservationists are working faster make sure they survive. Back
:02:22. > :02:25.in 2009 team went to Chile and South America to collect seeds from the
:02:26. > :02:30.last remaining cluster of monkey puzzle trees. Some went in a mass
:02:31. > :02:36.approach, others were planted. Six years on, they look like this. As
:02:37. > :02:40.soon as you sow them, you will see a written a couple of weeks, and
:02:41. > :02:45.within six months or so you'll get a lovely shoot coming up from the top,
:02:46. > :02:51.but it takes them six years to get to the stage in their life. But
:02:52. > :02:55.these have done amazingly well. It could be a prehistoric landscape,
:02:56. > :03:02.the trees date back 200 million years to the dinosaur times. These
:03:03. > :03:07.conifers can grow to over 130 feet in height. Along with the monkey
:03:08. > :03:11.puzzle tree seeds, thousands of others were also collected in Chile.
:03:12. > :03:17.They were brought back to the faults of the millennium seed bank, and was
:03:18. > :03:23.sorted, put into jars and put into huge fridges for safekeeping. There
:03:24. > :03:28.are seeds from 36,000 other species of plants from all over the world.
:03:29. > :03:34.In the next few years it is hoped a forest landscape like that in Chile
:03:35. > :03:40.can be rated here in Sussex. These trees in Chile are under threat for
:03:41. > :03:43.all sorts of different reasons. Fire, clearance, so collecting the
:03:44. > :03:47.seed and propagating it and having the scientific collection of monkey
:03:48. > :03:54.puzzles will help to detect the future of these trees for many
:03:55. > :03:58.generations to come. Luckily, they are tough, strong trees which can
:03:59. > :04:01.tolerate snow, rain and wind, which are all very common in the UK.
:04:02. > :04:03.In tennis, 16-year-old Katie Swan and Heather Watson have both
:04:04. > :04:06.won their games in the Fed Cup tennis opener against South Africa.
:04:07. > :04:11.Jocelyn Rae and Anna Smith won in the doubles.
:04:12. > :04:14.This very rare Ferrari car is expected to fetch up to over
:04:15. > :04:21.It's been described as a "fabulous star" which had been driven by some
:04:22. > :04:28.of the best drivers in racing history since it was made in 1957.
:04:29. > :04:32.And finally in golf, how easy is it to hit a hole in one?
:04:33. > :04:35.Well, if you're a robot, it's pretty easy.
:04:36. > :04:38.This is Eldrick the robot, who managed to make the golfing
:04:39. > :04:49.The robot is named after a famous golfer called Tiger Woods.
:04:50. > :04:55.That's all from me, Newsround's back right here in about half an hour.