Save Young Wallabies from City Lights


Target: Ivor Frischknecht, CEO of ARENA, Australia Renewable Energy Agency

Goal: Create and sell LED lighting that is less bright in order to improve wallaby birth cycles.

Wallaby babies are dying because artificial lighting is adversely affecting mothers’ birth cycles. Activists need to take action to better ensure these beautiful animals do not continue to suffer because of careless human ways.

Birth cycles of wallabies that live in the bushland, or the more desolate parts of Australia, were compared to the birth cycles of wallabies that live closer to city areas. Wallabies usually give birth approximately six weeks after the summer solstice, also known as Australia’s longest day of the year. However, the wallabies that lived near the city were confused by the ongoing glowing lights after the summer solstice ended. In fact, they gave birth about a month later than the other wallabies, as increased lighting suppressed melatonin levels of the animals, making it so their bodies were not able to respond as well to the shorter days following the solstice.

Food sources are not as optimal when birth is given at a later date, likely causing mother wallabies higher levels of stress. Since artificial lighting is increasing at a six percent rate per year and since stressed mother wallabies leave young wallabies that are too young to survive on their own, continuing to use lighting that is not wildlife-friendly is a huge problem.

Researchers feel the best way to solve this problem is to develop LED lights that display a different wavelength than the lights that are currently being used because a light with a different wavelength could be made to be less bright. Wallaby birth cycles would have a better chance of returning to normal if this were to happen.

Sign this petition and urge experts to develop and sell wildlife-friendly lights. Baby wallabies who need their mothers to stay around and care for them would surely benefit as a result.


Dear Mr. Frischknecht,

City lights are greatly affecting wallaby birth cycles, making it more likely that mother wallabies will abandon their babies. If wildlife friendly lights are not developed, many joeys may die.

When birth cycles of wallabies that live near the city were compared to birth cycles of wallabies that live in more rural areas over a five year time period, it was found that the wallabies living closer to the cities gave birth approximately one month later than the wallabies that lived near the bushland where artificial lights are absent.

Scientists theorized that glowing lights likely made it so the wallabies’ bodies were not able to adapt well to shorter days after the solstice took place, confusing the mothers as to when the most optimal time was to give birth. As a result, the mothers were not giving birth during a time when more food resources were readily available, possibly causing these mothers to become stressed and leave their babies behind because of food sources being in short supply.

Researchers feel this problem may be solved by making LED lights that don’t display a blue spectrum of color through its wavelength because a less bright light could be created by adjusting the wavelength or the color.

For all of these reasons, I urge you to support the development and selling of wildlife-friendly lights. Many more young wallabies will likely grow up to be healthy adults if more of this type of lighting is utilized.


[Your Name Here]

Photo Credit: Itshears

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  1. William Eaves says:

    Light pollution is just so unnecessary and with a bit of effort easy to minimise. A pity there is still so much of it 🙁

  2. Let’s do right by these wallabies — they need human intervention to survive, thrive, be happy and comfortable — let’s help them.

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