Summer Pool Party – Animal Style

Summer is in full swing and you know what that means–pool parties! And not just for us; many animals also enjoy the life aquatic. Enjoy this roundup of animals who take to water like moths to flame.


Hippos are water fiends. They’re actually adapted for life in the water and are found living in slow-moving rivers and lakes in Africa. With their eyes, ears, and nostrils on the top of the head, hippos can hear, see, and breathe while most of their body is underwater.


Our behemoth pachyderm friends also don’t hate water. Elephants often spray themselves with water or roll in the mud or dust for protection from the sun and biting insects. They can also use their trunks as periscopes to breathe underwater, which is quite possibly one of the coolest adaptations ever.

Polar Bears

Polar bears practically live a perpetual pool party. The taxonomic name for polar bears is Ursus maritimus, which means sea bear, a fitting name for these champion swimmers. They have been known to swim more than 60 miles without rest in search of food, using their broad front feet for paddling and their back legs like rudders to steer.

A #polarbear can swim for up to 12 days & up to 426 miles. #regram #animals #nature #sandiegozoo

A photo posted by San Diego Zoo (@sandiegozoo) on


Jaguars would show you up at any pool party with their swimming prowess, helped along by super muscular limbs and large paws to paddle with. In fact, they typically live near water and have a taste for aquatic creatures. Jaguars have even been observed sitting quietly at the water’s edge, occasionally tapping the surface with their tail to attract fish.


Otters are the only species in the weasel family that enjoys constant pool parties. They spend most of their lives in water, and they’re built for it. Their streamlined bodies are perfect for diving and swimming. They also have webbed feet and can close off their ears and nose as they swim underwater. Otters can also see just as well underwater as they can above, and can stay submerged for five to eight minutes.


Most birds are masters of the skies, but penguins prefer the sea. Penguins are fast swimmers allowing them to catch a variety of prey including sardines and anchovies, as well as squid and crustaceans.


Much like jaguars, tigers don’t shy away from a good dip in the water. Excellent and powerful swimmers, tigers are often found during the day relaxing or waiting to ambush prey in ponds, streams, and rivers.


Gharials, like all crocodilians, are born knowing how to swim. As they grow older they become incredibly agile swimmers, moving through the water with ease by using their powerful, oar-like tails and strongly-webbed hind feet.

Photo by Bob Worthington

Photo by Bob Worthington


Can you think of any other animals who love water? Let us know in the comments.


Matt Steele is senior social media planner for San Diego Zoo Global. Read his previous post, Myths About Rhino Horn That Need To Go Away.


Cocha Cashu: Exploring Uncharted Territory

Curious giant river otters inspect Ron and his group.

For the past two years the San Diego Zoo Institute for Conservation Research has been on a journey. The path has been long, and not always straight, but the endpoint is clear: we are exploring uncharted territory in search of a new and improved conservation vision. I am proud to say that I have been helping to steer us down this path, alongside my colleague and friend, Alan Lieberman, director of Regional Conservation Programs for the Institute. It all started two years ago, when John Terborgh, professor at Duke University, asked us if we were interested in inheriting his legacy of four decades at the Cocha Cashu Biological Station in Manu National Park in the magnificent Peruvian Amazon. Manu is a park without peer, a huge expanse sheltering more species than any other park on Earth. It is still pristine, almost untouched by human activity, other than the indigenous people living in the park as they have for thousands of years, some of whom remain uncontacted by the outside world. Learn more about the park and the Station from these earlier blogs: Cocha Cashu: Wild Nature, A Walk in the Woods with John Terborgh, and Manu National Park: Worth the Bites.

The Cocha Cashu Station will be set up to house researchers.

Cocha Cashu is deep in the heart of this park and, as such, is not easy to access. Having secured a 10-year agreement with the Peruvian National Parks Service to administer the Station, my journey starts in Cusco, where I am meeting our newly hired staff. I am joined by Cesar Flores, program director, Jessica Groenendijk, education coordinator, and Veronica Chavez, logistics coordinator. We board a van and spend the day on the long, winding road to a high Andean pass and then plummet down the mountainside along a single-lane dirt track to the Amazon basin. The direction of traffic alternates from day to day. Views of the cloud forests flanking the Andes are breathtaking. Along the way we are treated to a rare sighting of the preposterously ornate cock-of-the-rock, a bird that appears to have a slice of orange super-glued to its head.

A motorized canoe brings researchers to the Station.

At Atalaya we board a motorized canoe and travel all day down the upper “Mother of God” River to a jungle town called Boca Manu. From there, it is a pleasant two-day trip by boat up the Manu River, past the last bastions of civilization, to the Cocha Cashu Biological Station. Along the way we see more than 50 species of birds (out of the more than 1,000 that live in Manu), white caiman, river turtles, neotropical river otters, and several species of monkeys. We enjoy watching a group of red howler monkeys, dangling by their tails from the vegetation and scooping up mouthfuls of mineral-laden soil from the cliff.

At the Station, we spend our time brainstorming our mission and inspecting the infrastructure to determine how to upgrade the facilities. We will work to create more creature comforts for visiting scientists, who will pay a small fee to support the Station, while still maintaining the rustic—some may say primitive—charm of the Station. Planned are a new kitchen, improved bathrooms, a shower facility (replacing bathing in the nearby oxbow lake, though some may still prefer to attend to their hygienic needs alongside the piranha and black caiman that share the lake!), and improved solar power and internet connection. Yes, the Station does not yet have proper toilets, but it does have email! Most enjoyable, we check out the vital network of trails that provide researchers access to the forest and animals they study.

Ron inspects a large spider.

Despite the difficult task at hand, we slowly fall under Cashu’s spell. Eight species of primates visited the forest surrounding the Station, and we were treated to groups of spider and capuchin monkeys sipping the nectar from the flowering giant trees. Sometimes they were joined by scarlet macaws, and together they created quite a ruckus. Morning coffee was enjoyed at the dock, where the resident group of giant river otters often passed by, an incredible animal measuring 6 feet in length. We also took the small dugout canoe out on the lake and observed the otters playing and fishing. Jessica spent several years studying these animals and was a tremendous fountain of knowledge and expertise on the species. And there is nothing so magical as watching a full moon rise over the Manu River, silhouetting the ancient primeval forest that has remained unchanged for millennia.

A black-capped squirrel monkey is just one of the many species found in this pristine rain forest.

A week later, sadly, we retraced our steps back out of the Park. We left with a better understanding of the Station’s needs and a new and improved mission: to contribute to the knowledge and conservation of tropical biological diversity by improving infrastructure, educating the public, building conservation capacity, and promoting quality, innovative, scientific research at local, regional, national, and international levels. A tall order! We hope you will continue to follow us on this journey.” Though we work in the field in 35 countries around the globe and maintain several field stations, this is our first station “open for business” to any and all scientists and is our first program in the Amazonian ecosystem. The path is sure to be an exciting one, full of adventure and surprise.

Ron Swaisgood is the director of Applied Animal Ecology and the general scientific director of the Cocha Cashu Biological Station for the San Diego Zoo Institute for Conservation Research. Read his previous post, Tracking Pandas in Foping Nature Reserve.


An Otter’s New Friend

This past April in the San Diego Zoo’s Ituri Forest habitat, African spotted-necked otter Pori gave birth to a new baby girl we’ve named Lila. Along with the excitement of this birth, we were also a little apprehensive about how Mom would treat her older daughter, Mugo. Our experience with spotted-necked otters in the past prepared us for the possibility of Mugo being expelled from the group when the new baby and mom joined them.

Pori usually keeps her pup away from the rest of the family for about two months. Two months is when the pup’s fur becomes waterproof and she is ready to take that first dip in the water. There isn’t much research on spotted-necked otter behavior in the wild, but when contacting other institutions that house this species, we’ve found other females also reject their older daughters in correlation to having another litter of pups. So, when Mugo’s behavior indicated that she was being pushed out, we made plans to find an alternative place for her to live. Fortunately for her, another young female spotted-necked otter living at the Monterey Bay Aquarium with her family was in the same predicament and needed a new home. And so Kazana came to the San Diego Zoo and was introduced to Mugo!

As you can imagine, being separated from your family is scary, even a family that is urging you to leave. But I am happy to say that the girls have become fast friends, and I was excited to let them explore their home in Ituri Forest together. For our regular visitors, you know that Ituri Forest has two large exhibits separated by the guest walkway. What you may not realize is that the exhibits are joined only by the otter bedrooms directly under your feet. This allows us to have separate groups of animals live in each exhibit, everyone with their own bedroom space. It also allowed me to continue taking care of Mugo AND her new friend, Kazana! And since Mugo had been in the north exhibit a time or two before, this allowed her to show Kazana the ropes quite quickly.

After a few days of getting familiar with the exhibit, it was time to introduce the girls to the Allen’s swamp monkeys that share their new home! The troop living in the north exhibit is made up of Mr. Toad, Karen, Bunzi, Kinah, and Makonnen (see Nerissa’s previous blog, Swamp Monkey Checks Out Visitors). As usual, Bunzi and her two kids, Kinah and Makonnen, ran straight to the cliffs over the waterway to search for new toys or treats that we frequently hide for them there. As it turned out, we had a new form of enrichment for them that day!

Kinah was the first to spot Mugo and Kazana, and she let out a loud chirp to alert the troop. Having lived with swamp monkeys all her life, Mugo seemed unfazed. Kazana, however, was immediately interested and ran straight up the embankment to get a better look. This caused quite a bit of excitement for monkey mom and babies, and soon the whole monkey troop was chasing Kazana back into the water. This high-speed game of tag went on for a while, but then everyone settled into a new routine. The monkeys went into the high trees to nap, and the otters cruised up the waterfall to find a nice, warm bed for themselves. Of course, all of this was to be repeated every few hours for the next couple of days!

It’s been a few weeks since Mugo and Kazana have joined the swamp monkeys in Ituri Forest, and although they often play tag, much to our guests’ delight, it seems to be all in fun now. I’m now waiting for Mugo and Kazana to up the ante and meet their other neighbors: Helen the forest buffalo, Chelsea the forest hog, and Oboi the red river hog. I’ll keep you posted!

Nerissa Foland is a senior keeper at the San Diego Zoo.

Read a previous blog about the otters of Ituri Forest, Kinah Meets the Otters.

Read a blog about Mugo’s birth, Otter Pup at the Zoo.