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00:00The World of Warcraft
00:02The World of Warcraft
00:04The World of Warcraft
00:06The World of Warcraft
00:08The World of Warcraft
00:10The World of Warcraft
00:12Experience a world beyond imagination
00:18Where fish can fly
00:22Lizards walk on water
00:28Apes
00:30Master tools
00:34And frogs
00:36Disappear in plain sight
00:40Animals do the smartest things
00:46Through every stage of their lives
00:50From leaving home
00:54To raising a family
00:58From finding food
01:02To making friends
01:08They find ingenious ways to survive
01:12Against all odds
01:14Against all odds
01:19Welcome
01:20To the secret lives
01:22Of animals
01:24Of animals
01:36Nobody likes to be lonely
01:40On a lake in California
01:42This male
01:46Western green
01:48Is looking for love
01:54It's mating season
02:00To prove he's a worthy partner
02:02He'll have to perform
02:04A carefully choreographed dance
02:12Grebes only pair up
02:14If they're perfectly in sync with one another
02:16But it takes two
02:30To tango
02:40And this male is struggling to find a dance partner
02:42To find a dance partner
02:50Try as he might
02:56His approach
02:58Is getting him nowhere
03:00Nowhere
03:10And muscling in on a happy couple
03:18Isn't going to work
03:20His chances
03:30Are fading
03:32But after searching this six mile long lake
03:38Six mile long lake
03:43His perseverance
03:48Might finally pay off
04:00A single female
04:02Is a female
04:13Strong eye contact
04:14Is an engaging greeting
04:23Now he must echo her every move
04:32But can he dance?
04:34But can he dance?
04:49By taking up to 20 steps a second
04:52They glide together across the water
05:03Showing off their stamina
05:06And coordination
05:09A sign they're in tune
05:25These lovers will dance together
05:27Until the season's end
05:32Attracting a partner
05:38Attracting a partner
05:39Can be a daunting prospect
05:43But with the right moves
05:45And perseverance
05:47You can find
05:49The perfect match
05:50The perfect match
06:11To attract a mate
06:13Sometimes you've got to
06:15Make a splash
06:20Off the coast of Hawaii
06:23Off the coast of Hawaii
06:25This female humpback whale
06:28Is looking for a partner
06:34The impact from her colossal fins
06:39Can be heard underwater
06:42From almost two miles away
06:45It's an irresistible invitation
06:48It's an irresistible invitation
06:50And she's soon surrounded by males
06:54And she's soon surrounded by males
06:58They try to woo her with a love song
07:01They try to woo her with a love song
07:04But she'll only choose the fittest to be her mate
07:21So she puts them to the test
07:23In a race like no other
07:25This is one of the biggest courtship battles on earth
07:34She stays at the front
07:37While up to 20 males
07:39Each weighing around 30 tons
07:42Try to keep up
07:44They jostle for pole position
07:48And try to knock the competition out of the contest
08:02Glowing bubbles
08:04They confuse the humpbacks in their wake
08:06And a swipe of a 15 foot wide tail
08:17Intimidates rivals
08:19But make no mistake
08:24The female is in charge
08:29When she turns
08:32They turn
08:33They turn
08:36When she dives
08:38They die
08:43It's a demanding challenge
08:45That can last for four days
08:50Weeding out the weaker whales
08:56Until finally
09:00Only the fittest male remains
09:03She has found her mate
09:08She has found her mate
09:15Exhausted
09:17The new couple
09:19Rest
09:21Holding their breath
09:23For up to 30 minutes
09:26They disappear into the deep
09:29Together
09:33Selecting a mate
09:37Selecting a mate from a crowd of admirers
09:40Is a luxury
09:45For some
09:47It's hard to find even one suitor who's interested
09:55Here, in the mountains of Patagonia
09:58It's difficult to meet someone new
10:01Especially for this puma
10:05Especially for this puma
10:06There are fewer than 100 adults
10:20In a thousand square miles
10:22Square miles
10:27Like all her kind
10:29She prefers to live alone
10:31To avoid any fights
10:32To avoid any fights
10:36But if she's to find a mate
10:39She needs to drop her guard
10:40She needs to drop her guard
10:56A male
10:58Almost twice her size
10:59She approaches cautiously
11:05She approaches cautiously
11:14And he's showing his nerves too
11:16It's an awkward start to a date
11:26It's an awkward start to a date
11:39So to break the ice
11:40Under the ice
11:41This apex predator
11:43Shows her softer side
11:49In rarely seen behaviour
11:55She starts
11:57To flirt
12:02Making herself vulnerable
12:03And her intentions clear
12:24Eventually, he drops his guard
12:26And when he begins to follow her
12:30And when he begins to follow her
12:32It's a sure sign that he's interested
12:45In a discreet moment, the shy pair mate
12:48They won't stay together for long
13:00He will soon leave to defend his territory
13:07They both prefer a solitary lifestyle
13:10In these vast mountains
13:20They may never see each other again
13:25But six months later
13:31She has new company
13:40Finding a partner can be hard
13:52If you're naturally timid
14:00But sometimes
14:02It's just as challenging
14:04For a show-off
14:05On the coast of Panama
14:09On the coast of Panama
14:11This male fiddler crab
14:16Has just six hours to attract a mate
14:19Before the tide comes in
14:26So to try to get this female's attention
14:29He waves an oversized claw
14:33That weighs a third of his entire body
14:39And to female fiddler crabs
14:42Bigger is better
14:44But he hasn't been noticed yet
14:51Maybe
14:53He's not got the moves
14:57Or maybe
14:59It's because there are 5,000 other males
15:04All doing the same thing
15:12If he wants to stand out
15:16He'll have to do something different
15:18So he begins to build
15:28A grand entrance to his burrow
15:35A signpost that shows
15:37He's got a safe place to look after her
15:40He has to make it big
15:43Because like all fiddler crabs
15:46She has poor eyesight
15:51With every passing minute
15:53The tide creeps closer
16:00Despite his hard work
16:02His construction has still not caught her eye
16:07His efforts may be in vain
16:13Or are they?
16:17A grackle
16:20This opportunistic bird loves to eat fresh crab
16:24She needs to get out of harm's way
16:37And his elaborate porch
16:39Is a beacon of hope and safety
16:45Just what she needs
16:55In the nick of time
16:58She escapes the grackle
17:03And the incoming tide
17:06And this knight in shining armour
17:10Battens down the hatches
17:12The best partners offer protection and security for their loved ones
17:31But one dedicated romantic goes even further
17:35And puts his life on the line
17:42Springtime in Arizona
17:47Springtime in Arizona
17:51Signals the start of the dating season
18:01For this daring little lover
18:08A paradise jumping spider
18:10He's going on one of the most dangerous dates in the world
18:21This female
18:24Has high standards
18:28She'll eat any male that fails to impress
18:32To win her over and survive
18:42He must put on the performance of his life
18:49He starts with a flirtatious flick of his forelegs
18:53To get her attention
19:03Then a little shuffle
19:06To show off his best side
19:09The brighter and more colourful his appearance
19:12The more attractive he is to her
19:15The brighter and more colourful his appearance
19:17The more attractive he is to her
19:19But she remains unimpressed
19:21But she remains unimpressed
19:31This could cost him his life
19:35To seduce her and survive
19:38He needs a remarkable solution
19:41And using the latest technology
19:46We can hear it
19:50An improvised spider serenade
19:56Drumming his abdomen against the back of his head
20:00Up to 20 times per second
20:01He creates a series of alluring vibrations
20:11Coordinated with complex leg moves
20:16Jumping spiders are the only arachnids in the world
20:20To create a symphony like this
20:24She's judging his every step
20:26And he reacts by tailoring his performance
20:33To her specific taste
20:38As he grows in confidence
20:41He edges closer
20:47Then a gentle touch
20:56And finally
20:58He's made it
21:04But female jumping spiders
21:06Quickly tire of their partners
21:11So he makes a swift exit
21:14And escapes with his life
21:20Finding a partner can be a daunting task
21:23But if you dare to be different
21:29Show what you're made of
21:35And reveal a softer side
21:41When you find the one
21:45It's like walking on air
21:53In Southern California
22:02The team's mission is to film
22:04The spectacular courtship dance
22:06Of Western Greaves
22:08Activity which peaks for just a few weeks
22:11Each winter
22:13And these birds can start their performance
22:16At any time
22:18Anywhere on this six-mile stretch of water
22:21So filming it will be challenging
22:24Getting the action in frame is really difficult
22:27Because you don't know which way the birds are going to go
22:30Or when they're going to go
22:32Their synchronized dance across the water
22:34May only last a few seconds
22:36So to capture this breathtaking behavior
22:39The crew will need to be equally in tune
22:43We've got Christina looking at the group behavior
22:46We've got Billy who's positioning the boat for us
22:51Cheryl who's swinging the jib arm to get that into position
22:55And I'm trying to help Johnny find the birds
22:57We have to get perfect timing to get the shot
23:01And it's not always easy
23:03With a lot of people to coordinate
23:05Things get off to a bumpy start
23:08Keep going left
23:10There
23:12Nope
23:14Right, right, right
23:16There
23:17In the back towards the shore
23:19There they go
23:25And just as they're getting into a groove with the Greaves
23:29Look at that
23:33Short line but we got it
23:34The heavens open
23:42We've had to call it a day
23:44Fingers crossed it gets dry soon
23:45We can get back out there and film
23:52Overnight everything has changed
23:56The lake's water level has risen dramatically
24:00It's made this piece of water even bigger
24:02And I've lost 50 yards of bank to play with
24:06Even more concerning
24:08The stars of the show seem to have disappeared
24:11There doesn't seem to be many Greaves about
24:13We're hoping the levels haven't meant they've moved to another lake
24:17Undeterred, the team begins the search
24:20They scour the water for signs
24:32There's one right in front of us
24:35This is a good active group
24:39You see them?
24:41It's the moment of truth
24:42But can the crew maintain their synchronicity
24:47And get the shot
24:49Hey, hey, help, help, help, help, help, help, help, help
24:52Oh my goodness
24:54No way
24:56Tell me you got that
24:58It's the perfect performance
25:00The team's timing couldn't be better
25:04That's brilliant
25:05Yet, as well-coordinated as the crew is, the Greaves take it to a whole new level.
25:26Next time, to overcome life's greatest obstacles,
25:32you must hone your skills to perfection.
25:39It takes trial and error, but by staying focused and learning from others,
25:48it's possible to master your talents and succeed.
26:02To be continued...
26:06To be continued...
26:08To be continued...
26:15To be continued...