A squirrel uses its tail to shield it from the weather as rain falls in south London October 1, 2014. Official figures showed that last month was the driest September in the UK since records began over one hundred years ago. (Photo by Dylan Martinez/Reuters)

Cowboy, a 5-year-old Chesapeake Bay Retriever trained by Jason Kidd of PawPaw, Mich., competes in the fetch it! competition at the Purina Pro Plan Incredible Dog Challenge on Saturday, September 27, 2014 at Purina Farms in Gray Summit, Mo. (Photo by Whitney Curtis/Invision for Purina Pro Plan/AP Images)

An undated handout picture made avaiable by the Toronga Zoo on October 1, 2014 shows an orphaned Swamp Wallaby joey named “Alkira”, who is being hand-raised by Matt Dea, a Taronga Zoo education co-ordinator, at the Taronga Zoon in Sydney, Australia. (Photo by EPA/Taronga Zoo)

A male red deer, covered in mud, barks in Richmond Park in south west London, October 3, 2014. Over 600 red and fallow deer roam in the largest of London's Royal Parks, and have their numbers managed in an annual cull each November and February. (Photo by Toby Melville/Reuters)

A male red deer with antlers covered in bracken, walks through undergrowth in Richmond Park in south west London, October 3, 2014. Over 600 red and fallow deer roam in the largest of London's Royal Parks, and have their numbers managed in an annual cull each November and February. (Photo by Toby Melville/Reuters)

A dog drinks during the opening of the first Dutch cat and dog restaurant in Amsterdam, The Netherland, September 30, 2014. In preparation for Animals day on October 4 the Royal Canin Experience Center opened a pop-up eatery for the four-legged friends. (Photo by Koen van Weel/EPA)

Flamingos seen at the ZSL Whipsnade Zoo in Whipsnade on September 29, 2014 in Bedfordshire, England. (Photo by Tony Margiocchi/Barcroft Media)

A young Baltic sturgeon is pictured in the hand of a fisherman in the NABU-Nature Experience Centre in Blumberg mill in Brandeburg, Germany, 29 September 2014. Future Baltic parent sturgeons have been growing in the ponds of the aquaculture Blumberg mill since the end of 2013. In the last months, young Baltic surgeons were raised in the landmarked hatchery for the German-Polish border river. Around 15,000 sturgeons will be released into the river Oder in the afternoon. (Photo by Patrick Pleul/EPA)

An undated handout picture made available on 30 September 2014 shows a dinner-plate sized Tasmanian cave spider in a cave at an unknown location in Tasmania, Australia. Filmmakers Joe Shemesh and Doug Thost have spent months in dark, wet Tasmanian caves recording the lives of the shy and light-sensitive spider. A short film showing the making of a documentary about a prehistoric spider which lives in Tasmanian caves is to make an international premiere. (Photo by Joe Shamesh/EPA)

A Harris antelope squirrel eats on September 30, 2014 at the zoo in Rostock, northeastern Germany. (Photo by Jens Buettner/AFP Photo/DPA)

Animal godmother Barbara Becker holds spiny anteater “Harapan” on September 30, 2014 at the zoo in Rostock, northeastern Germany. In the wild, the egg-laying mammals occur in Australia and New Guinea. (Photo by Jens Buettner/AFP Photo/DPA)

In this undated photo made available by the journal Nature on Tuesday, September 30, 2014, monarch butterflies cluster together as they spend winter in Mexico. The butterflies are famous for migrating from the U.S. and Canada to Mexico for the winter. A study by researcher Marcus Kronforst of the University of Chicago released in the journal Nature on Wednesday, October 1, 2014 suggests the species itself also started out in North America some 2 million years ago, instead of South or Central America. (Photo by Jaap de Roode/AP Photo/Nature)

Switch, a 3-year-old Miniature Poodle trained by Geri Hernandez of Riverside, Calif., competes in the agility competition at the Purina Pro Plan Incredible Dog Challenge on Saturday, September 27, 2014 at Purina Farms in Gray Summit, Mo. (Photo by Whitney Curtis/Invision for Purina Pro Plan/AP Images)

Brendan Dirks, 26, of Dana Point displays the 15lb 9oz California spiny lobster he caught off the Dana Point Headlands Monday night. Dirks, released the lobster back into the ocean on Wednesday, October 1, 2014, near where he caught it. (Photo by Leonard Ortiz/AP Photo/The Orange County Register)

Meerkats inspect a pumpkin filled with fruits and flour worms on September 29, 2014 at the zoo in Leipzig, eastern Germany. (Photo by Waltraud Grubitzsch/AFP Photo/DPA)

Palestinian Jamal al-Amuasi (R) displays one of his pythons and a Tibetan Mastiff outside his house in Betunia, near the West Bank city of Ramallah, on September 27, 2014. Amuasi, who has 25 snakes at his family property, said he breads dogs and reptiles as a hobby. (Photo by Abbas Momani/AFP Photo)

A picture taken on September 29, 2014 shows flooded streets near the banks of the Lez river in the southern French city of Montpellier in the department of Herault, which was placed under hight flood alert until September 30. (Photo by Sylvain Thomas/AFP Photo)

Cattle graze at the Great Hungarian Plain in Hortobagy, east of Budapest late September 25, 2014. Picture taken September 25, 2014. (Photo by Laszlo Balogh/Reuters)

Cattle rest during sunset at the Great Hungarian Plain in Hortobagy, east of Budapest September 24, 2014. (Photo by Laszlo Balogh/Reuters)

In this Tuesday, September 23, 2014 photo provided by the Florida Keys News Bureau, “Sapphire” a subadult loggerhead sea turtle, surfaces in a holding pool at the Florida Keys-based Turtle Hospital in Marathon, Fla. Because of a boat strike injury, the reptile cannot submerge without weights affixed to its carapace and can't be released. It is scheduled to travel Thursday, Sept. 25, via FedEx to its new permanent home at the Living Coast Discovery Center near San Diego. (Photo by Andy Newman/AP Photo/Florida Keys News Bureau)

A Surfer Dog rides a wave in the small dog division during the 6th Annual Surf Dog competition at Huntington Beach, California on September 28, 2014. (Photo by Mark Ralston/AFP Photo)

Undated handout photo issued by Chester Zoo of one of the four baby meerkats who have made their public debut at the zoo, with their mother (left). The pups were born in August but have only just started to show their faces as their parents have kept them well protected in their burrows until now. The tiny youngsters are already learning how to forage for food but keepers have yet to give them names as it is too early to confirm their sexes. (Photo by Steve Rawlins/Chester Zoo/PA Wire)