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![](https://static.wixstatic.com/media/35a196_407b637e6bb84b8d988cb8a1c767df3f~mv2.jpg/v1/fill/w_1800,h_1600,al_c,q_90,enc_avif,quality_auto/35a196_407b637e6bb84b8d988cb8a1c767df3f~mv2.jpg)
![](https://static.wixstatic.com/media/35a196_4f385dbb9a574cb098939c1f5a1a98a5~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_4f385dbb9a574cb098939c1f5a1a98a5~mv2.webp)
![Frog Kindergarten](https://static.wixstatic.com/media/35a196_4f385dbb9a574cb098939c1f5a1a98a5~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_4f385dbb9a574cb098939c1f5a1a98a5~mv2.webp)
Kevin Esser
Mar 18, 2019
Frog Kindergarten
Shortly after its metamorphosis, the Noble's Robber Frog (Craugastor noblei) has quite different proportions than adult specimens. The...
![](https://static.wixstatic.com/media/35a196_7517dff8f55047f79cf2cda3b666a904~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_7517dff8f55047f79cf2cda3b666a904~mv2.webp)
![Variable Viper](https://static.wixstatic.com/media/35a196_7517dff8f55047f79cf2cda3b666a904~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_7517dff8f55047f79cf2cda3b666a904~mv2.webp)
Kevin Esser
Mar 4, 2019
Variable Viper
I already mentioned it in my post about the Camouflage Viper: Eyelash Vipers (Bothriechis schlegelii) are extremely variable in ...
![](https://static.wixstatic.com/media/35a196_dba9dc0d58144634ac33bbc3b9913d93~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_dba9dc0d58144634ac33bbc3b9913d93~mv2.webp)
![Tiny transparent treasure - Glass Frog](https://static.wixstatic.com/media/35a196_dba9dc0d58144634ac33bbc3b9913d93~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_dba9dc0d58144634ac33bbc3b9913d93~mv2.webp)
Kevin Esser
Feb 21, 2019
Tiny transparent treasure - Glass Frog
Members of the amphibian family Centrolenidae (order Anura) appear only in Central and South America. While the general background...
![](https://static.wixstatic.com/media/35a196_afb799e75247402790f002f0f5fbf5a0~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_afb799e75247402790f002f0f5fbf5a0~mv2.webp)
![Happy Valentine's Day!](https://static.wixstatic.com/media/35a196_afb799e75247402790f002f0f5fbf5a0~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_afb799e75247402790f002f0f5fbf5a0~mv2.webp)
Kevin Esser
Feb 14, 2019
Happy Valentine's Day!
I would not call myself a romantic guy and I've never paid much attention to Valentine's Day. In addition, the distance to my girlfriend...
![](https://static.wixstatic.com/media/35a196_48e7d8f61c864dc7888836561199572d~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_48e7d8f61c864dc7888836561199572d~mv2.webp)
![Barking warrior - Iguana challenge](https://static.wixstatic.com/media/35a196_48e7d8f61c864dc7888836561199572d~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_48e7d8f61c864dc7888836561199572d~mv2.webp)
Kevin Esser
Jan 12, 2019
Barking warrior - Iguana challenge
When I heard the little dog "Negro" making a lot of noise in the garden, I thought a wild animal could be the reason for that. So I...
![](https://static.wixstatic.com/media/35a196_2cf2aa5be8254c3dab34db4442f4f53c~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_2cf2aa5be8254c3dab34db4442f4f53c~mv2.webp)
![Camouflage Viper](https://static.wixstatic.com/media/35a196_2cf2aa5be8254c3dab34db4442f4f53c~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_2cf2aa5be8254c3dab34db4442f4f53c~mv2.webp)
Kevin Esser
Jan 11, 2019
Camouflage Viper
My first snake photo of 2019: Eyelash Viper (Bothriechis schlegelii) This species is known for its many different color variants. The most...
![](https://static.wixstatic.com/media/35a196_ab1f3818fe8346c5bf3eed013e54a256~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_ab1f3818fe8346c5bf3eed013e54a256~mv2.webp)
![Praying for Reptiles (Vipers)](https://static.wixstatic.com/media/35a196_ab1f3818fe8346c5bf3eed013e54a256~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_ab1f3818fe8346c5bf3eed013e54a256~mv2.webp)
Kevin Esser
Sep 1, 2018
Praying for Reptiles (Vipers)
Actually the main goal of this trip was to observe vipers... unfortunately that did not work. Anyway it was nice to find some Reptiles...
![](https://static.wixstatic.com/media/35a196_37edca948b6841079d010d5e15eb3f5f~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_37edca948b6841079d010d5e15eb3f5f~mv2.webp)
![King of the Everglades](https://static.wixstatic.com/media/35a196_37edca948b6841079d010d5e15eb3f5f~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_37edca948b6841079d010d5e15eb3f5f~mv2.webp)
Kevin Esser
May 31, 2018
King of the Everglades
Florida's most famous animal is a magnificent reptile. The American Alligator (Alligator mississippiensis) is endemic to the...
![](https://i.ytimg.com/vi/8TLbAt9xpj4/maxresdefault.jpg)
![Florida wildlife - video](https://i.ytimg.com/vi/8TLbAt9xpj4/maxresdefault.jpg)
Kevin Esser
May 22, 2018
Florida wildlife - video
After I spent alomst half a year in Costa Rica, we decided to celebrate the family reunion with a nice vacation. The perfect destination...
![](https://static.wixstatic.com/media/35a196_01dc448645c34aaf8f82bddaaddbc2af~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_01dc448645c34aaf8f82bddaaddbc2af~mv2.webp)
![Happy St. Patrick's Day!](https://static.wixstatic.com/media/35a196_01dc448645c34aaf8f82bddaaddbc2af~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_01dc448645c34aaf8f82bddaaddbc2af~mv2.webp)
Kevin Esser
Mar 17, 2018
Happy St. Patrick's Day!
A little dinosaur: Green Basilisk (Basiliscus plumifrons) male, Cahuita National Park. The mesmeric eyes of the Ghost Glass Frog...
![](https://static.wixstatic.com/media/35a196_49023907eaa547fbab2e241f56774511~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_49023907eaa547fbab2e241f56774511~mv2.webp)
![New nocturnal neighbors](https://static.wixstatic.com/media/35a196_49023907eaa547fbab2e241f56774511~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_49023907eaa547fbab2e241f56774511~mv2.webp)
Kevin Esser
Feb 16, 2018
New nocturnal neighbors
Since January I am working for Callidryas Tours and Arenal Oasis as a tour guide. At the Arenal Oasis Eco Lodge I saw numerous animals,...
![](https://static.wixstatic.com/media/35a196_ae0c7a7832f542cb8f95e231bf50855a~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_ae0c7a7832f542cb8f95e231bf50855a~mv2.webp)
![Oxyrhopus petolarius](https://static.wixstatic.com/media/35a196_ae0c7a7832f542cb8f95e231bf50855a~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_ae0c7a7832f542cb8f95e231bf50855a~mv2.webp)
Kevin Esser
Jan 14, 2018
Oxyrhopus petolarius
I found this beautiful False Coral Snake or Forest Flame Snake (Oxyrhopus petolarius) in the rainforest close to La Fortuna. This snake...
![](https://static.wixstatic.com/media/35a196_37608bbec0b7486b84c9798fad1ec44b~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_37608bbec0b7486b84c9798fad1ec44b~mv2.webp)
![Cahuita National Park](https://static.wixstatic.com/media/35a196_37608bbec0b7486b84c9798fad1ec44b~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_37608bbec0b7486b84c9798fad1ec44b~mv2.webp)
Kevin Esser
Dec 23, 2017
Cahuita National Park
Cahuita National Park is located along the southern coast of the Caribbean side of Costa Rica. Here you have the opportunity to observe...
![](https://static.wixstatic.com/media/35a196_ef2f01f4c0a644428b4d9b1818b45bdd~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_ef2f01f4c0a644428b4d9b1818b45bdd~mv2.webp)
![Eat or be eaten](https://static.wixstatic.com/media/35a196_ef2f01f4c0a644428b4d9b1818b45bdd~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_ef2f01f4c0a644428b4d9b1818b45bdd~mv2.webp)
Kevin Esser
Nov 25, 2017
Eat or be eaten
During my last night walk in the rainforest, I saw only the species I already found the nights before. When I spotted a Leptodeira...
![](https://static.wixstatic.com/media/35a196_bd91f19e28604576b8884a53243120a5~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_bd91f19e28604576b8884a53243120a5~mv2.webp)
![Nocturnal neighbors](https://static.wixstatic.com/media/35a196_bd91f19e28604576b8884a53243120a5~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_bd91f19e28604576b8884a53243120a5~mv2.webp)
Kevin Esser
Nov 20, 2017
Nocturnal neighbors
At night you can see many animals right next to our station. Especially when it rains, there is a lot of "traffic" around our ponds. I...
![](https://static.wixstatic.com/media/35a196_fb7f69364e414e19abab89e68ffaab36~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_fb7f69364e414e19abab89e68ffaab36~mv2.webp)
![Welcome to the Jungle!](https://static.wixstatic.com/media/35a196_fb7f69364e414e19abab89e68ffaab36~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_fb7f69364e414e19abab89e68ffaab36~mv2.webp)
Kevin Esser
Nov 13, 2017
Welcome to the Jungle!
Today I arrived at the biological station after a long flight, a long taxi drive and a long bus drive. There were three unhappy babies...
![](https://static.wixstatic.com/media/35a196_0fc4724ebd424a8585b98f7ab82cf53d~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_0fc4724ebd424a8585b98f7ab82cf53d~mv2.webp)
![Yellow-bellied beauty](https://static.wixstatic.com/media/35a196_0fc4724ebd424a8585b98f7ab82cf53d~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_0fc4724ebd424a8585b98f7ab82cf53d~mv2.webp)
Kevin Esser
Jul 9, 2017
Yellow-bellied beauty
Not every human influence on nature is harmful. Stone walls, quarries, artificial waters and some others can be the habitat for many...
![](https://static.wixstatic.com/media/35a196_2fb2faa5ffc54bbfba714c162601c77e~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_2fb2faa5ffc54bbfba714c162601c77e~mv2.webp)
![Treasure hunt](https://static.wixstatic.com/media/35a196_2fb2faa5ffc54bbfba714c162601c77e~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_2fb2faa5ffc54bbfba714c162601c77e~mv2.webp)
Kevin Esser
Jun 24, 2017
Treasure hunt
I have planned to explore a new destination somewhere not too far away. I used the help of Google Earth. After searching in the vicinity...
![](https://static.wixstatic.com/media/35a196_06f002b6c45b465c886506f1f46311bd~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_06f002b6c45b465c886506f1f46311bd~mv2.webp)
![Paraguay - Chaco](https://static.wixstatic.com/media/35a196_06f002b6c45b465c886506f1f46311bd~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_06f002b6c45b465c886506f1f46311bd~mv2.webp)
Kevin Esser
Apr 21, 2017
Paraguay - Chaco
In April, I had the opportunity to go with my parents on a trip to Paraguay. It was not really a herping trip but of course we took some...
![](https://static.wixstatic.com/media/35a196_36cbf9080245489bbd5bf99d5a1cd388~mv2.jpg/v1/fill/w_250,h_250,fp_0.50_0.50,q_30,blur_30,enc_auto/35a196_36cbf9080245489bbd5bf99d5a1cd388~mv2.webp)
![Paraguay - Ybycui](https://static.wixstatic.com/media/35a196_36cbf9080245489bbd5bf99d5a1cd388~mv2.jpg/v1/fill/w_454,h_341,fp_0.50_0.50,q_90,enc_auto/35a196_36cbf9080245489bbd5bf99d5a1cd388~mv2.webp)
Kevin Esser
Apr 17, 2017
Paraguay - Ybycui
The Ybycui National Park is located 150 kilometers from Paraguay's capital Asunción. It is a small (approx. 5,000 hectares) but beautiful...
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