• The Genome of the Guatemalan Beaded Lizard

    Guatemalan Beaded Lizards are known only from the arid regions of the upper Motagua Valley in eastern Guatemala. The isolated desert habitats in this region are surrounded by mountains covered with humid forests, a habitat foreign to this species. The desert patches experience a short but intense annual rainy season, followed by a very long…

    Continue Reading


  • Lizards & Climate Change

    Lizards and Climate Change Temperature is an important factor affecting biological processes in all forms of life. For example, geographical distribution, the speed of enzyme actions, muscle contractions, defense behavior, foraging performance, and reproduction are all impacted by temperature. Therefore it is not surprising that global warming is equal to habitat loss as the most…

    Continue Reading


  • The Banded Krait is composed of multiple lineages

    The kraits in the genus Bungarus, are venomous elapid snakes which inhabit the Asian subcontinent. Most members of the genus are poorly studied, However, recent study on the diversification and evolution of elapid snakes suggests kraits evolved 30–25 million years ago, and are close relative of other Australasian elapid genera and the sea snakes (Lee…

    Continue Reading


  • Viral video reveals entire alligator inside Burmese python’s stomach in Florida

    Viral video reveals entire alligator inside Burmese python’s stomach in Florida

    The following was slightly edited from Natalie Neysa Alund’s article in USA TODAY This 18-foot python caught by workers in the Everglades National Park in Florida was euthanized and during a necropsy, scientists found a whole, 5-foot alligator in its stomach. An intact 5-foot long alligator has been found inside the stomach of Burmese python…

    Continue Reading


  • Global Wildlife Summit in Panama

    Global Wildlife Summit in Panama

    Human demand for shark fin soup, particularly in East Asia, has threatened shark populations Joseph Prezioso AFP/File Panama City (AFP) – The trade in shark fins, turtles, and other threatened species will come under scrutiny at a global wildlife summit in Panama, starting Monday, that will also focus on the spread of diseases such as…

    Continue Reading


  • The Giant Whiptail

    The Giant Whiptail

    The species show considerable ontogenetic changes and while juveniles and young adults are striped, older adults lose the stripes are spotted.

    Continue Reading


  • Invasive Lizards in Florida, and why are there so few in Arizona

    Invasive Lizards in Florida, and why are there so few in Arizona

    In 2020 I was visiting friends in southern Florida. They picked me up at the Fort Lauderdale-Hollywood International Airport, and within a few minutes, we were headed south. Looking out the car window, I was astonished to see a Brown Basilisk Lizard, Basiliscus vittatus, trying to walk across the freeway. The lizard was a species…

    Continue Reading


  • Snake Removal in Urban Arizona

    Snake Removal in Urban Arizona

    A home-owner encountering a rattlesnake in their yard, garage, or house can be un-nerving. As people build more houses in the Sonoran Desert, this kind of encounter becomes more frequent. In a recent paper, Batemen et al. (2022) analyze snake removals in a social-ecological context and it underscores the conservation benefits of researchers partnering with…

    Continue Reading


  • Malayopython reticulatus has colonized Puerto Rico

    Malayopython reticulatus has colonized Puerto Rico

    A Fox News story in 2015, stated authorities in Puerto Rico caught a 3.6-meter, 70 pound  Burmese Python in a river in the northern coastal town of Manati. Puerto Rico also has an introduced population of Boa constrictors, and it appears that Reticulated Pythons, the longest snake, and one that occasionally preys on humans, is…

    Continue Reading


  • The 2022 Python Challenge is Underway in Florida

    The 2022 Python Challenge is Underway in Florida

    The Florida Everglades supports a variety of native animals but over the years the pet trade and keepers of exotic animals have introduced a variety of invasive species including birds, mammals, fish and reptiles. The invasive Burmese python does not belong in Everglades ecosystem and pose a threat to native wildlife. The Florida Python Challenge billed as…

    Continue Reading


  • A New Dwarf Anole from Cuba

    A New Dwarf Anole from Cuba

    Diaz et al. (2022) describe a new species of this subgroup from western Cuba based on genetic and morphological differences from other species.

    Continue Reading


  • African Water Snake added to phylogeny

    African Water Snake added to phylogeny

    African water snakes of the genus Lycodonomorphus (Family Lamprophiidae) are widespread, abundant and presumably an important component of many aquatic and semiaquatic food webs. These snakes are poorly understood taxonomically, particularly from a phylogenetic perspective. With only four of the nine species currently sequenced, this study attempts to improve our understanding of the evolutionary relationships…

    Continue Reading


  • Vocalization in the snake Dipsas catesbyi 

    Vocalization in the snake Dipsas catesbyi 

    Dipsas catesbyi has been recorded making a vocalization. It is not a hiss. Do some snakes communicate with sound?

    Continue Reading


  • What is the world’s smallest advanced snake?

    What is the world’s smallest advanced snake?

    The Barbados Threadsnake, (Tetracheilostoma carlae), is considered the world’s smallest snake. It is tiny –  reaching a maximum adult length of only 104 mm (4.1 inches) and an average weight of 0.6 g (0.02 ounce). Described by Hedges (2008),  it is a member of the ancient clade Leptotyphlopidae commonly referred to as threadsnakes. Threadsnakes, Blindsnakes…

    Continue Reading


  • Hot snakes at hot springs

    Hot snakes at hot springs

    Hot-spring snakes of the genus Thermophis are unique – they are one of the few eastern hemisphere members of the family Dipsasidae – all of the others reside in the western hemisphere, and they are the only snakes that live at elevations up to 4900 m ASL. Living in such extreme habitats requires physical and…

    Continue Reading


  • Hormone Triggers Production of Sex Pheromones in Thamnophis

    . Garter snake dens in the Interlake region of Manitoba, Canada, are the scene of a mating frenzy  each spring and provide an opportunity for researchers to work out the mechanisms by which snake’s choose their mates. The following is based upon an article published in The Journal  of Experimental Biology that experimentally demonstrates that…

    Continue Reading


  • Loggerhead Feeding Ecology

    GAINESVILLE, Fla. – Satellite tracking of threatened loggerhead sea turtles has revealed two previously unknown feeding ‘hotspots’ in the Gulf of Mexico that are providing important habitat for at least three separate populations of the turtles, according to a study published recently in the journal Biological Conservation. The two sites, located in the open waters…

    Continue Reading


  • A New Semi-Aquatic Lizard from Peru

    There are relatively few aquatic or semi-aquatic lizards. The marine iguana feeds underwater and the common iguana uses water to escape predators, as do a few Anolis; some monitor lizards regularly use aquatic habitats; a few teiids also use aquatic habitats for escape (Kentropyx) and the caiman lizards of the genus Dracaena feed in the…

    Continue Reading


  • A 1973 Death from a Sistrurus catenatus Bite Recounted

    An article in TheDailyNews.com (New York) recounts the 1973 death of a man from the bite of an eastern massasauga. HIDDEN HISTORY: Snake bite kills man in Bergen swamp, 1973 By Mark Graczyk The Bergen Swamp Wildlife Area is a swamp and nature preserve located within the towns of Bergen and Byron. It’s a wonderful spot…

    Continue Reading


  • Anoles Demonstrate the Founder Effect

    Anolis sagrei. Photo credit Neil Losin The following is a press release from the National Science Foundation. Biologists who released lizards on tiny uninhabited islands in the Bahamas have uncovered a seldom-observed interaction between evolutionary processes. Jason Kolbe, a biologist at the University of Rhode Island (URI)–along with colleagues at Duke University, Harvard University and…

    Continue Reading