Hundreds of festive, adorable canines and their owners took part in the annual “A Very Corgi Howloween” costume walk Saturday, October 25, 2014, at Green Lake in Seattle, Wash. The walk was put on by the Seattle-local “Corgi's R Us” MeetUp group. (Photo by Jordan Stead/AP Photo/Seattlepi.com)

“Carli Davidson is both an internationally recognized award winning photographer and an experienced animal trainer and caretaker. She is able to capture the innate personalities of her subjects using her professional understanding of animal behavior. She is a freelance photographer for the Oregon Zoo, and works regularly with domestic animals both commercially and personally for her fine art projects”. (Photo by Carli Davidson)

Taronga's first female elephant calf explores the paddock with her mother Pak Boon at Taronga Zoo on November 3, 2010 in Sydney, Australia. The 120kg elephant was born at 1:12am and is Taronga's first female calf and fifth born to The Australian Conservation Management Plan for endangered elephants. The calf will be given a Thai name to reflect the herds' cultural origin. (Photo by Brendon Thorne/Getty Images)

Elephants spray tourists with water in celebration of the Songkran water festival in Thailand's Ayutthaya province, about 80 km (50 miles) north of Bangkok, April 9, 2014. (Photo by Rungroj Yongrit/EFE)

With its huge eyes, comical name and diminutive size, Mark R. Smith’s image of a baby Hawaiian bobtail squid can’t help but raise a smile. A curiously endearing creature, the cephalopod is just 1.5cm across, its mantle cavity bearing more than a passing resemblance to a rather natty shower cap. But it is also a beautiful example of symbiosis – nature’s version of “I’ll scratch your back if you scratch mine” – for on the underside of the squid is a light organ which houses bioluminescent bacteria. The squid offers the bacteria protection and food, while the bacteria emit a glow – a handy trait that the squid uses to offset its silhouette, helping it to evade predators in the depths below. Mark R. Smith’s entry combines several images of a Hawaiian bobtail squid with different focus lengths to create a final picture with greater depth of field than normal. (Photo by Mark R. Smith/Wellcome Images/Macroscopic Solutions)

A reveller wearing a bearskin costume poses during the Bearskin Parade in Comanesti, Romania, on December 30, 2022. More than two hundred “bears” and dozens of musicians, surrounded by police and tourists, took part in the end-of-the-year parade. Young men and women dressed in real bearskin and traditional costumes paraded to chase away the evil spirits of the coming year. In all regions of Romania similar events exist but it is in this historical region of Moldova that they are the most developed. Comanesti has become the centre, attracting more and more troupes of dancers every year. (Photo by Daniel Mihailescu/AFP Photo)

A koala soaked by floodwaters sits atop a fence post to escape the deluge in the town of Stirling in the Adelaide Hills of South Australia in this picture taken September 14, 2016. (Photo by Russell Latter/Reuters)

A five meters high sculpture “Pentateuque” created by Contemporary French artist Fabien Merelle, is displayed in Central, business district of Hong Kong, Tuesday, May 21, 2013. The artwork brings to real life the fantastical and seemingly impossible act of an average man balancing a gigantic elephant. The elephant and the man are modeled on one at the Singapore Zoo and on the artist himself. (Photo by Kin Cheung/AP Photo)