Dogs and their owners wearing all types of colorful costumes participate in the Elizabeth Street Garden Halloween Pet Parade on November 4, 2023 in New York City. The parade was posponed from October dur to bad weather. (Photo by Andrew Schwartz/Splash News and Pictures)

People celebrate Nowruz, considered as the harbinger of spring, awakening of nature and brotherhood, with traditional costumes and at Gobustan National Park in Baku, Azerbaijan on March 21, 2022. People from different regions of Azerbaijan attended celebration with colorful dresses and various music groups performed. (Photo by Resul Rehimov/Anadolu Agency via Getty Images)

Brian Skerry can be called many things – explorer, journalist, conservation advocate – but he is first and foremost a photographer. His journeys to capture amazing underwater photographs have taken him across the world’s oceans. Photo: This Bahamian oceanic whitetip shark, known for the distinctive coloring on its white-tipped, rounded extremities, is part of a globally threatened species due to overfishing demands, primarily for its fins. (Photo by Brian Skerry)

If you ever wanted to meet a live Pikachu, you might have a hard time finding one. However, there is a creature on this Earth that kind of looks like one. That creature’s name is Thecacera pacifica and it is a species of a sea slug. These little critters can be found in the Indian Ocean from African coast to Indonesia and Vanuatu. Their vibrant orange and blue colors look gorgeous, making it look like some sort of anemone. Also, as you might have guessed from the striking colors of the sea slug, just like most of anemones, this creature is very toxic. Thus, keeping it as a pet isn’t an option.

People visit an art installation “Alley of Flying Umbrellas” in central St. Petersburg, Russia, May 15, 2015. Art installation inspired by “Umbrella Sky Project” of Portuguese town of Agueda and was made of 500 colored umbrellas. (Photo by Anatoly Maltsev/EPA)

An aerial view taken with a drone shows the autumnally colored Fuerst-Pueckler-Park near Cottbus, eastern Germany, Saturday, October 29, 2016. The park, composed with great sensitivity in the 19th century by Prince Hermann von Pueckler-Muskau, is considered as one of the last great German landscape gardens. (Photo by Patrick Pleul/DPA via AP Photo)

An Indonesian model wearing a colorful costume participates in a parade during the Batam Island International Culture Festival in Batam Island, Indonesia, 16 December 2017. Batam Island, an industrial area in Indonesia, is boosting the tourism sector to improve the economy of its community by eyeing the visitors' boom of next door country Singapore. (Photo by Hotli Simanjuntak/EPA/EFE)

Participants at the Dubai Run at Sheikh Zayed Road in Dubai, United Arab Emirates on November 26, 2021. (Photo by Ruel Pableo for The National)