Once the chicks hatch, the parents guide them into the nearest bodies of water as caribou move through their breeding grounds, attracting grizzly bears who follow them.

In the Serengeti, hundreds of thousands of Wildebeest move through on the largest terrestrial migration on Earth, marching through territories of lions who hunt them.

August on Vancouver Island, hundreds of tadpoles exploit the sun's energy to feed on the warm shallows while avoiding predators like dragonfly larvae and leeches.

Eventually, through the summer of the days, the tadpoles grow legs and move onto land, where their march into the forest is threatened by garter snakes, but their attacks are minimal to their numbers.

America's pacific northwest's rivers are now filled with water, the perfect stage for sockeye salmon to migrate upstream to breed, their journey taking them just beyond Iliamna lake.

Many are intercepted by bears and Harbour seals, but the vast majority reaches their spawning grounds where they lay their eggs and die.

Continuous daylight in the arctic has melted most of the sea ice, making the life of a mother polar bear and her two cubs a hard one.

In New Zealand, Fiordland penguin pairs breed unded the protection of the forest, though their nesting ground locations mean they must trek over boulders, roots, ravines, and any other obstacle the jungle puts in their way; once the chick is grown up, the penguins leave for the sea, making a journey away from the rich waters of New Zealand half way to Antarctica, making it a "quite pointless migration" The monsoon rains arrive on Christmas Island, triggering the breeding season for the Christmas Island red crab.

Their route may have been altered by human activity, but people have provided the crabs paths to cross and reach the shore to spawn.

The new normal, however, has its benefits and problems: on one hand, the farmlands provide more fuel for the birds, on the other, having become so numerous, they are sought after by hunters, with a quarter of a million being shot every year.

And it is not just human hunters who challenge their journey, when conditions worsen and the geese are forced to stop, bald eagles attack and kill the injured ones from the panicking flocks.

A 1 hour long bonus episode "Our Planet - Behind The Scenes" about the project is accessible under Additional Videos on Netflix.

The website's critical consensus reads, "A cornucopia of visual wonder and environmental advocacy, Our Planet's breathtaking cinematography explores more of this beautiful, blue marble while presenting an urgent call to action to its inhabitants"[17] Metacritic, which uses a weighted average, assigned the film a score of 88 out of 100, based on 7 critics, indicating "universal acclaim".

[18] Lucy Mangan of The Guardian gave out 4 out of 5 stars to Our Planet, saying "it places clearer emphasis on the fragility and interconnectedness of all the species and eco-systems on display, and on the huge impact, humanity has had on them in so short a time.

[19] Bryan Resnick of Vox praised the series as "can't really describe the scale of what's missing" stating "It reminds us we’re living in an age of staggering wildlife loss due to human development, over-fishing, deforestation, and climate change.

The light, comic touches that made for lovely little moments in Planet Earth are overshadowed if not spoiled entirely, by the traumatic lessons put front and centre.

When necessary, they are embellished with Attenborough's commentary, which is never obtrusive and always written with brevity and wit...It has been created by masters of their craft with an exceptional narrator, I do wonder, though, if the experienced executive producers at BBC would have sharpened up the first episode a little.

and gave it a 3 out of 5 stars, writing "It is clichéd in its portrayal of life on earth as a slow-motion ballet of tooth and claw....In short, the innovations that made Attenborough's previous series so sensational are conspicuously absent.

"[25] Writing in The Independent, Lucy Jones stated that the most important aspect of the series, which set it apart from other nature documentaries of its type, was the depictions of the harsh realities of global warming, mass species extinction and environmental degradation which were woven into the narration that accompanied the breathtaking scenes and imagery, but she also argues it did not go far enough and should have been more radical given current ecological crises.

Starting from 20 June 2020, the series was aired on Indonesian television network TVRI as a part of Belajar dari Rumah (Study from Home) programming block, made possible by a partnership between the Ministry of Education and Culture and Netflix.