0:00:04 > 0:00:07Hello, it's Ayshah here with Newsround for you on Monday
0:00:07 > 0:00:08afternoon, live on CBBC.
0:00:08 > 0:00:11Keep watching to find out why a bread ban has done
0:00:11 > 0:00:12wonders for ducks.
0:00:12 > 0:00:16And why temperature is so important to these baby turtles.
0:00:26 > 0:00:29A rocket has blasted off to space on its way to Mars today.
0:00:29 > 0:00:34At 9:31am the craft lifted off from the Baikonur cosmodrome
0:00:34 > 0:00:36in Kazakhstan to start an incredible journey.
0:00:39 > 0:00:42We have ignition.
0:00:42 > 0:00:43And we have blast off.
0:00:43 > 0:00:47The Trace Gas Orbiter hurtling into space.
0:00:48 > 0:00:51Even though the launch was successful, we will not know
0:00:51 > 0:00:54until 9pm if the rocket is on the right path
0:00:54 > 0:00:57to the red planet.
0:00:57 > 0:00:59And then it has got a long journey ahead.
0:00:59 > 0:01:03It will take seven months to get there.
0:01:04 > 0:01:06Once on the surface, its main mission is to search
0:01:06 > 0:01:08for the signs of life.
0:01:08 > 0:01:12It will do that by looking for methane gas, and if it is there,
0:01:12 > 0:01:16it could show if there has ever been life on Mars.
0:01:17 > 0:01:21The satellite also has a small vehicle which will be ejected three
0:01:21 > 0:01:25days before the carrier rocket arrives.
0:01:26 > 0:01:30It will enter the atmosphere at over 30,000 mph.
0:01:31 > 0:01:35It will be used to test whether a second mission can be sent
0:01:35 > 0:01:36to the red planet in 2018.
0:01:36 > 0:01:41The next, much more ambitious, surface part of the mission
0:01:41 > 0:01:46will focus on the search for possible presence of life very
0:01:46 > 0:01:49early in the history of Mars.
0:01:49 > 0:01:52All the missions that have gone until now to the surface have dug
0:01:52 > 0:01:54in ten centimetres.
0:01:54 > 0:01:59We are going down two metres, that is a big deal.
0:02:00 > 0:02:02Scientists hope the information they get from this latest rocket
0:02:02 > 0:02:07will help them uncover if there was ever life on Mars.
0:02:08 > 0:02:12Can you imagine if temperature decided whether you were born a girl
0:02:12 > 0:02:13or a boy?
0:02:13 > 0:02:15Well, that's what happens with turtles.
0:02:15 > 0:02:18Experts are now worried that rising temperatures could cause problems
0:02:18 > 0:02:22by creating too many girls.
0:02:23 > 0:02:25This team of scientists have crossed deserts,
0:02:25 > 0:02:28seas and beaches to dig for buried treasure.
0:02:28 > 0:02:32That treasure, turtle eggs.
0:02:32 > 0:02:38They have come to these islands to find out more about turtles
0:02:38 > 0:02:40and how climate change will affect their future.
0:02:40 > 0:02:44We go out and collect eggs from nesting females.
0:02:44 > 0:02:48We bring them back to incubate them to find out the switch point
0:02:48 > 0:02:50where they switch from male to female.
0:02:50 > 0:02:53The switch point is the key.
0:02:53 > 0:02:56At certain temperatures, these eggs switch from having males
0:02:56 > 0:02:58in them to females.
0:02:58 > 0:03:02For humans and other mammals, your gender is decided
0:03:02 > 0:03:04by what genes you have.
0:03:04 > 0:03:07But for some reptiles, like these little turtles,
0:03:07 > 0:03:11it is actually caused by how hot or cold the egg gets.
0:03:12 > 0:03:15For many turtles, if the sand is warmer than 29 degrees,
0:03:15 > 0:03:18there is a good chance they will be girls.
0:03:18 > 0:03:21If it is any colder, it will probably be boys.
0:03:21 > 0:03:25The problem is temperatures around the world are going up,
0:03:25 > 0:03:28which means too many girl turtles will be hatching.
0:03:28 > 0:03:30If it keeps getting warmer, there will be more females,
0:03:30 > 0:03:33and the males will keep dying at a greater rate
0:03:33 > 0:03:36than they are being replenished.
0:03:36 > 0:03:38It is a demographic collapse.
0:03:38 > 0:03:41Scientists don't believe it will happen right away,
0:03:41 > 0:03:45but they are concerned that if we don't prepare for it,
0:03:45 > 0:03:47it might one day happen.
0:03:47 > 0:03:50I don't think turtle populations are at risk any time soon.
0:03:50 > 0:03:55They live for a long time, potentially 120 years,
0:03:55 > 0:03:57so the change will be slow.
0:03:57 > 0:04:00But the point is that climate change is very rapid compared
0:04:00 > 0:04:03to what turtles have experienced in the past.
0:04:03 > 0:04:07Finding a solution is vital, so with research like this,
0:04:07 > 0:04:09hopefully more of these little hatchlings can look forward
0:04:09 > 0:04:13to a happy future, even if they have a few obstacles
0:04:13 > 0:04:15on the way.
0:04:15 > 0:04:16There is a wave!
0:04:16 > 0:04:18Go in, little fella!
0:04:18 > 0:04:19Go on!
0:04:19 > 0:04:23There you go, bye!
0:04:24 > 0:04:26Feeding the ducks is probably something that most
0:04:26 > 0:04:27of you have done.
0:04:27 > 0:04:30Experts say a campaign to stop people throwing bread into canals,
0:04:30 > 0:04:33ponds and rivers has been successful, but more needs
0:04:33 > 0:04:34to be done.
0:04:34 > 0:04:37Bread's bad for ducks, and it can spread disease
0:04:37 > 0:04:39and attract pests when it's not eaten.
0:04:39 > 0:04:43The Canal River Trust want people to replace bread with healthier bird
0:04:43 > 0:04:47snacks like seeds, fruit and vegetables, and even frozen
0:04:47 > 0:04:49peas!
0:04:49 > 0:04:50That's all for today.
0:04:50 > 0:04:54Newsround's back right here tomorrow morning at 7:40am with Ricky.
0:04:57 > 0:04:57Buy
0:04:57 > 0:04:58Buy buy.