• Education
    • Higher Education
    • Scholarships & Grants
    • Online Learning
    • School Reforms
    • Research & Innovation
  • Lifestyle
    • Travel
    • Food & Drink
    • Fashion & Beauty
    • Home & Living
    • Relationships & Family
  • Technology & Startups
    • Software & Apps
    • Startup Success Stories
    • Startups & Innovations
    • Tech Regulations
    • Venture Capital
    • Artificial Intelligence
    • Cybersecurity
    • Emerging Technologies
    • Gadgets & Devices
    • Industry Analysis
  • About us
  • Contact
  • Advertise with Us
  • Privacy & Policy
Today Headline
  • Home
  • World News
    • Us & Canada
    • Europe
    • Asia
    • Africa
    • Middle East
  • Politics
    • Elections
    • Political Parties
    • Government Policies
    • International Relations
    • Legislative News
  • Business & Finance
    • Market Trends
    • Stock Market
    • Entrepreneurship
    • Corporate News
    • Economic Policies
  • Science & Environment
    • Space Exploration
    • Climate Change
    • Wildlife & Conservation
    • Environmental Policies
    • Medical Research
  • Health
    • Public Health
    • Mental Health
    • Medical Breakthroughs
    • Fitness & Nutrition
    • Pandemic Updates
  • Sports
    • Football
    • Basketball
    • Tennis
    • Olympics
    • Motorsport
  • Entertainment
    • Movies
    • Music
    • TV & Streaming
    • Celebrity News
    • Awards & Festivals
  • Crime & Justice
    • Court Cases
    • Cybercrime
    • Policing
    • Criminal Investigations
    • Legal Reforms
No Result
View All Result
  • Home
  • World News
    • Us & Canada
    • Europe
    • Asia
    • Africa
    • Middle East
  • Politics
    • Elections
    • Political Parties
    • Government Policies
    • International Relations
    • Legislative News
  • Business & Finance
    • Market Trends
    • Stock Market
    • Entrepreneurship
    • Corporate News
    • Economic Policies
  • Science & Environment
    • Space Exploration
    • Climate Change
    • Wildlife & Conservation
    • Environmental Policies
    • Medical Research
  • Health
    • Public Health
    • Mental Health
    • Medical Breakthroughs
    • Fitness & Nutrition
    • Pandemic Updates
  • Sports
    • Football
    • Basketball
    • Tennis
    • Olympics
    • Motorsport
  • Entertainment
    • Movies
    • Music
    • TV & Streaming
    • Celebrity News
    • Awards & Festivals
  • Crime & Justice
    • Court Cases
    • Cybercrime
    • Policing
    • Criminal Investigations
    • Legal Reforms
No Result
View All Result
Today Headline
No Result
View All Result
Home Science & Environment

Ancient Enemies? Patterns of Resistance to Widow Spider Venom in Lizards todayheadline

June 20, 2025
in Science & Environment
Reading Time: 2 mins read
A A
0
2
SHARES
5
VIEWS
Share on FacebookShare on Twitter


Lizards are major predators of arthropods, including chemically defended species such as spiders. We previously found two lizard species (Elgaria multicarinata, Sceloporus occidentalis) possess different degrees of resistance to black widow spider venom (BWSV). Because these lizards are not closely related, resistance might represent independent adaptations to local prey, or be a deeply rooted trait of lizards. To determine whether BWSV resistance is a derived or ancestral trait of lizards, we assessed BWSV resistance at organismal and tissue levels in three additional lizard species (Coleonyx variegatus, Takydromus sexlineatus, Iguana iguana) representing a broad phylogenetic, geographic, and ecological scope. We mapped results onto the lizard phylogeny and used a mammalian outgroup for comparison. To determine whether lizards might possess broad-spectrum resistance against many toxins, we also quantified resistance to Arizona bark scorpion venom (ABSV) in E. multicarinata and S. occidentalis. Sprint trials revealed that insectivorous species (C. variegatus, T. sexlineatus) were not significantly affected by BWSV, while the herbivorous species (I. iguana) exhibited severely reduced performance. Histological analysis showed minimal to moderate muscle damage in insectivorous species, but extensive damage in I. iguana. In comparison, sprint trials with E. multicarinata and S. occidentalis showed these lizards are highly susceptible to ABSV. As such, lizards are not broadly resistant to diverse toxins, but do possess a baseline level of resistance to BWSV compared to mammals, with resistance elevated in some lineages and lost in others. Thus, ecological interactions with widow spiders appear to have driven patterns of venom resistance across the lizard phylogeny.

Thill, V.L., Teglas, M.B., Moniz, H.A. et al. Ancient Enemies? Patterns of Resistance to Widow Spider Venom in Lizards. Evol Biol (2025). https://doi.org/10.1007/s11692-025-09650-1

Previous Post

ESA signs agreement for potential use of Orbital Reef

Next Post

Harshana Suriyapperuma resigns as Sri Lanka Deputy Minister of Finance todayheadline

Related Posts

man eating apple

The ‘Fibermaxxing’ Wellness Trend May Pose Health Risks. Here’s Why. : ScienceAlert todayheadline

August 3, 2025
2
YouTube Thumbnail

Playing Video Games Has an Unexpected Effect on Kids’ IQ, Study Discovers : ScienceAlert todayheadline

August 3, 2025
6
Next Post

Harshana Suriyapperuma resigns as Sri Lanka Deputy Minister of Finance todayheadline

  • Trending
  • Comments
  • Latest
Family calls for change after B.C. nurse dies by suicide after attacks on the job

Family calls for change after B.C. nurse dies by suicide after attacks on the job

April 2, 2025
Pioneering 3D printing project shares successes

Product reduces TPH levels to non-hazardous status

November 27, 2024

Police ID man who died after Corso Italia fight

December 23, 2024

Hospital Mergers Fail to Deliver Better Care or Lower Costs, Study Finds todayheadline

December 31, 2024
Harris tells supporters 'never give up' and urges peaceful transfer of power

Harris tells supporters ‘never give up’ and urges peaceful transfer of power

0
Des Moines Man Accused Of Shooting Ex-Girlfriend's Mother

Des Moines Man Accused Of Shooting Ex-Girlfriend’s Mother

0

Trump ‘looks forward’ to White House meeting with Biden

0
Catholic voters were critical to Donald Trump’s blowout victory: ‘Harris snubbed us’

Catholic voters were critical to Donald Trump’s blowout victory: ‘Harris snubbed us’

0
Weber State hires Damian Lillard as basketball GM

Weber State hires Damian Lillard as basketball GM todayheadline

August 3, 2025
Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel

Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel todayheadline

August 3, 2025
man eating apple

The ‘Fibermaxxing’ Wellness Trend May Pose Health Risks. Here’s Why. : ScienceAlert todayheadline

August 3, 2025
Chris Van Hollen meets with Kilmar Abrego Garcia in El Salvador

Senate confirms former Fox News host Jeanine Pirro as U.S. Attorney for the District of Columbia

August 3, 2025

Recent News

Weber State hires Damian Lillard as basketball GM

Weber State hires Damian Lillard as basketball GM todayheadline

August 3, 2025
1
Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel

Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel todayheadline

August 3, 2025
1
man eating apple

The ‘Fibermaxxing’ Wellness Trend May Pose Health Risks. Here’s Why. : ScienceAlert todayheadline

August 3, 2025
2
Chris Van Hollen meets with Kilmar Abrego Garcia in El Salvador

Senate confirms former Fox News host Jeanine Pirro as U.S. Attorney for the District of Columbia

August 3, 2025
4

TodayHeadline is a dynamic news website dedicated to delivering up-to-date and comprehensive news coverage from around the globe.

Follow Us

Browse by Category

  • Africa
  • Asia
  • Basketball
  • Business & Finance
  • Climate Change
  • Crime & Justice
  • Cybersecurity
  • Economic Policies
  • Elections
  • Entertainment
  • Entrepreneurship
  • Environmental Policies
  • Europe
  • Football
  • Gadgets & Devices
  • Health
  • Medical Research
  • Mental Health
  • Middle East
  • Motorsport
  • Olympics
  • Politics
  • Public Health
  • Relationships & Family
  • Science & Environment
  • Software & Apps
  • Space Exploration
  • Sports
  • Stock Market
  • Technology & Startups
  • Tennis
  • Travel
  • Uncategorized
  • Us & Canada
  • Wildlife & Conservation
  • World News

Recent News

Weber State hires Damian Lillard as basketball GM

Weber State hires Damian Lillard as basketball GM todayheadline

August 3, 2025
Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel

Jack Smith, who led criminal probes on Trump, is under investigation by Office of Special Counsel todayheadline

August 3, 2025
  • Education
  • Lifestyle
  • Technology & Startups
  • About us
  • Contact
  • Advertise with Us
  • Privacy & Policy

© 2024 Todayheadline.co

Welcome Back!

OR

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Business & Finance
  • Corporate News
  • Economic Policies
  • Entrepreneurship
  • Market Trends
  • Crime & Justice
  • Court Cases
  • Criminal Investigations
  • Cybercrime
  • Legal Reforms
  • Policing
  • Education
  • Higher Education
  • Online Learning
  • Entertainment
  • Awards & Festivals
  • Celebrity News
  • Movies
  • Music
  • Health
  • Fitness & Nutrition
  • Medical Breakthroughs
  • Mental Health
  • Pandemic Updates
  • Lifestyle
  • Fashion & Beauty
  • Food & Drink
  • Home & Living
  • Politics
  • Elections
  • Government Policies
  • International Relations
  • Legislative News
  • Political Parties
  • Africa
  • Asia
  • Europe
  • Middle East
  • Artificial Intelligence
  • Cybersecurity
  • Emerging Technologies
  • Gadgets & Devices
  • Industry Analysis
  • Basketball
  • Football
  • Motorsport
  • Olympics
  • Climate Change
  • Environmental Policies
  • Medical Research
  • Science & Environment
  • Space Exploration
  • Wildlife & Conservation
  • Sports
  • Tennis
  • Technology & Startups
  • Software & Apps
  • Startup Success Stories
  • Startups & Innovations
  • Tech Regulations
  • Venture Capital
  • Uncategorized
  • World News
  • Us & Canada
  • Public Health
  • Relationships & Family
  • Travel
  • Research & Innovation
  • Scholarships & Grants
  • School Reforms
  • Stock Market
  • TV & Streaming
  • Advertise with Us
  • Privacy & Policy
  • About us
  • Contact

© 2024 Todayheadline.co