BBC World Service

The 207 seeds planted at the Olympics opening ceremony, representing each of the delegations that will participate in the games, will be planted and turned into a small forest in Rio.

But in an interview with BBC Brasil, biologist Mario Moscatelli – an activist who campaigns for the clean-up of Guanabara Bay – the segment is "nothing more than a marketing piece and a carnival act”.

"It is not the mission of athletes to save nature - they are here to compete,” he adds.

“There will be 12,000 trees, and I hope that at least 10% of them survive. Planting is easy, care is difficult. Let's see how many survive in a year."

Luke Reddy
BBC Sport in Rio

Keep your eyes out for the island of Tuvalu with one athlete at the Games. Etimoni Timuani is a sprinter and a professional footballer in his homeland. He's had a table for one at the village all week.

Bhutan have two athletes here. They have an archer with the name Karma. No other names, just Karma. She'll reap what she sows.

No doubt who the man on the left and the woman to his right support, but wait, what's this... who does the man on the right support? Brermany? Grazil?

Image source, Reuters

Image source, Reuters

Dan Reuben: No selfie stick rubbish from the GB team. Just solid flag waving. Good stuff

The sort of thing that puts the 'Great' in Britain Dan...

Andy Murray putting the guns to good use.

Team GB won 29 gold medals four years ago, how many will they manage this time around?

Andy Murray holds the flag in one hand! His left hand too. 

Georgia - Great Britain can't be far away...

If you missed the announcement of which team came out when, you've no chance of spotting them at the back of the Maracana...

Image source, Getty Images

We are up to Finland...

Siblings Callum and Derek Hawkins (athletics), John and Michael Whitaker (equestrian), Ellie and Rebecca Downie (gymnastics), Peter and Richard Chambers (rowing), Andy and Jamie Murray (tennis) and Alistair and Jonathan Brownlee (triathlon) are all set to compete for GB.

Married couples Chris and Gabby Adcock (badminton) and Kate and Helen Richardson-Walsh (hockey) have also been selected.

Well, as fascinating as watching over 10,000 athletes walk out of the tunnel is, it's a bit repetitive. So here's the Mardi Gras celebrations

Image source, Getty Images

The man from Estonia is definitely the most animated with the flag - he's going to have someone's eye out with that thing!

Former world tennis number one Rafael Nadal is happy to be carrying the flag for Spain after missing out on the 2012 Olympics through injury.

Big noise for the Americans, who are watched by John Kerry. They are wearing jackets which light up, apparently.

Swimmer Michael Phelps carries the flag, ahead of the biggest team at the Games, some 560 strong.

If Phelps entered the all-time table on his own he would be 43rd. He's won 18 golds. EIGHTEEN. 

Image source, Reuters

The Federated States of Micronesia - who knew they competed at the Olympics?

Excuse my ignorance. They had six athletes in London, and have five here.