Buzz
Pink: the color we associate with bubblegum, Valentine's Day cards, and Barbie. It also holds ties to social causes and brands, including the iconic pink triangle and breast cancer awareness campaigns. Interestingly, pink has even been shown to have a calming effect, and is used in places like prisons and hospitals to promote tranquility.
Pink isn't even considered a 'true' color, and some view it as a scientific mystery. It isn't a wavelength or particle, and it doesn't appear in the visible spectrum (you won’t find it in rainbows, for instance). Our brains simply interpret it as a color. Fascinating, right?
While we let this intriguing fact sink in, take a look at these remarkable instances of pink in the natural world. Pink is not a color commonly found in nature, making these occurrences even more astonishing due to their rarity.
10. Pink Sand Beach, Bahamas
Resembling a scene straight out of a technicolor fairytale, Pink Sand Beach spans three miles along Harbour Island in the Bahamas. A vast reef system just offshore keeps the waters calm and shields the beach and its visitors. This reef also plays a key role in the unique bubblegum hue of the sand.
The reef’s coral hosts a tiny, single-celled organism known as Foraminifera, whose shells are a bright pink or red. These coral creatures are vital to the ocean ecosystem, living on coral reefs, sea floors, under rocks, and within caves. Like all organisms, Foraminifera eventually die, and when they do, their colorful bodies get crushed by the ocean's waves and wash up on shore. Mixed with sand and other coral fragments, the Foraminifera create the distinctive pink hue of the beach.
9. Female Orchid Praying Mantis
In Southeast Asia, the male and female orchid praying mantises have evolved to look strikingly different. The male is small and brown, while the female resembles the orchid flowers that surround her. This camouflage allows females to attract prey while helping males avoid detection as they search for a mate.
This evolution has led to a truly remarkable female specimen. Female orchid mantises have perfected the art of disguise, with limbs shaped like orchid petals and adorned with stunning pink and yellow tones. Their bodies, resembling fully formed orchids, are often mistaken for real flowers and can even be more effective at attracting insects than the flowers they mimic. Interestingly, these mantises don’t replicate a specific species of orchid, but rather a mix of orchid-like features.
8. San Francisco Salt Ponds
If you've ever flown into San Francisco, you might have spotted a vibrant patchwork of ponds along the coastline. These are the Cargill Salt Ponds, which have mostly been sold to government and non-profit organizations for restoration efforts.
For 150 years, salt was one of San Francisco's main industries. The salt mines, which once covered over 15,000 acres, are now part of a large-scale tidal wetland restoration project. This means that the strikingly colorful ponds will not last forever.
So, what creates the vivid hues of the salt ponds? The answer lies in a microorganism—a type of algae called Dunaliella. The algae turn a rich red or coral pink in high-salt water, and a green color when the salt content is lower.
The stunning color patterns of the salt ponds are even visible from space, with astronauts using them as a visual reference while orbiting the Earth.
7. Amazon River Dolphin
This dolphin doesn’t live in the ocean; it's one of the last remaining freshwater dolphins on the planet. Found in rivers and lakes throughout South America, including the Amazon River, these dolphins are massive, weighing as much as 350 pounds (160 kg) and growing up to nine feet (2.7 m) in length. However, they lack the usual dorsal fin that most dolphins have.
Sadly, these dolphins are often killed on purpose because they eat the fish that local river fishermen rely on for their livelihood. They're also the subject of many myths. One popular belief is that they are quiet, solitary, and blind, but research has shown that these dolphins are actually social creatures—sometimes even aggressive—and have full vision.
The dolphins can range from gray to a striking pink, with the pink color becoming more prominent as the animals age. Male dolphins tend to have the brightest pink tones.
One theory is that the pink hue on their skin is a result of scar tissue from frequent fights. Another hypothesis suggests that the pink coloration may have evolved as a way to camouflage in the red sand of the South American riverbeds, helping the dolphins hide from larger predators.
6. Lake Hillier, Australia
From above, Australia’s Lake Hillier appears as though someone spilled large amounts of Pepto Bismol across the landscape. Its vibrant pink color stands out, and just like the salt ponds of San Francisco, the source of this color is the salt-loving Dunaliella algae. This microbe contains pigment compounds that help it absorb sunlight, resulting in the striking reddish-pink hue.
Scientists have also discovered other types of algae and bacteria that further enhance the pink tint of Lake Hillier. These findings suggest that the lake’s coloring is linked to an earlier use of the site—specifically, it was once home to a leather tanning station in the early 1900s.
So, Lake Hillier’s color is a mix of both natural and human-made influences; the bright hue is partially a result of past human activities.
5. Elephant Hawk Moth
From caterpillar to fully-grown moth, this species is truly remarkable. The name comes from the caterpillar’s unique shape: its head and thorax are slimmer than the rest of its body, giving it a resemblance to an elephant's trunk.
Like many moth caterpillars, it has developed a clever defense mechanism. Its body is marked to resemble a snake, complete with eyes, to deter predators. It even has a trick that mimics the blinking of an eye: the caterpillar's anal horn can rapidly pulsate to give the illusion of a blinking eye.
If the caterpillar manages to survive and transition into a cocoon, it will emerge as one of the most beautiful moth species in the world, and certainly one of the most distinct in the United Kingdom. Unlike many moths, which are typically gray or brown, the Elephant Hawk Moth is a striking combination of pink and olive. Though often mistaken for a pink butterfly, it is nocturnal and has a stout, fuzzy body, much like other moths.
4. Pink Terraces of Lake Rotomahana
One pink wonder that is no longer visible is the Pink Terraces of Lake Rotomahana. These natural formations were thought to be lost forever after an earthquake struck the shores of New Zealand in 1886. The terraces, which were both pink and white, were beloved by New Zealanders and were even called the 'eighth wonder of the world.' The formations were unique, being the two largest quartz outcrops in existence. One was white, while the other, due to an unknown chemical impurity, was pink.
Fast-forward 150 years to a mission aimed at mapping and studying Lake Rotomahana's floor. Using sonar technology, scientists detected an outcrop that they suspected could be the lost pink terraces. They deployed an underwater camera team to investigate further, and to their delight, they confirmed that small remnants of both the white and pink terraces still existed.
While the terraces had been severely reduced to less than ten percent of their original size due to the 1886 earthquake, New Zealanders can find comfort in the fact that these natural wonders haven’t been entirely erased from the Earth.
3. Okinawa Cherry Blossoms
Cherry blossoms are a beloved sight in various parts of the world, including Vancouver and Washington, D.C., but if you're looking for the most vivid pink blossoms, Okinawa, Japan is the place to go. Okinawa is the first region in Japan where cherry trees bloom, usually around mid-February, while other parts of the country don’t see blossoms until closer to April or May.
In Japan, cherry blossoms hold deep cultural significance. During the bloom, people flock to orchards across the country for hanami, a tradition of “flower viewing.” So, why are cherry blossoms so cherished in Japan? Their brief bloom reflects the Japanese cultural appreciation for the transience of beauty. The cherry blossom season also marks new beginnings, aligning with the start of the school year and Japan’s new financial calendar on April 1. Plus, they are simply breathtaking to behold.
2. Lake Retba, Senegal
The seemingly idyllic white beaches of Lake Retba in Senegal may look perfect, but they are far from what they appear. The lake's salt content rivals that of the notorious Dead Sea, and its sandy shores are primarily made of pure salt. The lake’s name, Lac Rose, is a clue to its striking dry-season color: a vibrant pink hue. (The water’s color shifts throughout the year, fluctuating with the salinity.)
The lake’s signature pink color comes from the same algae responsible for other pink bodies of water around the world: Dunaliella. Combine algae, minerals, and the intense heat of the sun, and during certain times of the year, the lake can even appear blood red.
Lake Retba serves as a major hub for salt collectors, who spend long hours extracting salt from the lakebed. To protect their skin from the extreme salinity, they coat themselves in shea butter.
1. Pink Katydid
Katydids, which resemble crickets, are typically green. However, recent research reveals that in North American katydids, the pink color is genetically dominant, determining the offspring's hue. For many years, scientists believed that pink, along with yellow and orange, appeared in katydids due to a genetic mutation controlled by recessive genes, similar to albinism in humans.
In the past decade, researchers at the Audubon Butterfly Garden and Insectarium in New Orleans have uncovered new findings that challenge the old theory. They have shown that green is, in fact, a recessive trait, while pink is dominant. This means that if a green katydid mates with a pink one, their offspring will be pink, contrary to previous beliefs.
The rarity of pink katydids is often attributed to the lack of camouflage their bright color provides compared to the typical green. If you’re lucky enough to spot one in the wild, particularly in the New Orleans area, you might hear the Cajun saying: 'If a pink katydid lands on your shoulder on Valentine’s Day, you will find true love that year!'
