The loudspeakers are designed to give specific advice in the event of an emergency.
Residents of an Australian town are being overwhelmed by thousands of flying foxes.
England Lions batsman Ben Duckett is suspended from playing for the rest of their tour of Australia after pouring a drink over James Anderson in a Perth bar.
How a eureka moment gave rise to a global business
How England can still win the Ashes
Australians urged to track frogs on app
Citizen saga inspires Australia's word of 2017
Will same-sex marriage set off immediate wedding plans?
Photo snaps from remote places on Earth
Broadcast time 02:06 GMT - 02:30 GMT
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Broadcast time 05:06 GMT - 05:30 GMT
Broadcast time 06:06 GMT - 07:00 GMT
Attenborough unravels the mystery of Jumbo the elephant
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