The Humane League
  • Donate

Mission
Impact
The Crisis
  • Take Action
  • Ways to Give
  • Manage Your Donation link
  • Latest
  • Careers
  • Events
Follow US
  • Facebook
  • Instagram
  • LinkedIn
  • Bluesky
  • Twitter/X
  • Youtube
  • Cookie Preferences
  • Privacy Policy
  • Terms and Conditions
  • Our Partners

Contact Us

  • The Humane League, PO Box 10476
    Rockville, MD 20849

  • [email protected]

  • +1 240-200-4480

About Us

  • Mission
  • Impact
  • Latest
  • Our Leadership
  • Financials
  • Careers
  • Our AI Commitment

About You

  • Update Your Preferences

Get Active

  • Take Action
  • Volunteer
  • Digital Activism
  • Events

Donate

  • Give Now
  • Fundraise for the Animals
  • Give Monthly
  • Join a Giving Society
  • Make a Legacy Gift
  • Explore Ways to Give
  • Manage Your Donation

Shop

  • All Products
  • Shipping Policy
THL-mended-heart-icon-padding

Official Merchandise from The Humane League

Shop now
  • Facebook icon white
  • Instagram icon white
  • LinkedIn icon white
  • Bluesky icon
  • Twitter icon white
  • Youtube icon white
  • Privacy Policy
  • Terms and Conditions
  • Our Partners

©️ The Humane League / EIN: 04-3817491

Unless otherwise noted all imagery of factory farms on this site is representative of typical conditions.

Jacob R. Peacock

Former Staff | Jacob conducted research at The Humane League Labs between 2017–2021. He earned a B.Sc. in Computational and Integrative Biology, summa cum laude, from Rutgers University and started his career at a marketing analytics start-up, working as a software developer and data scientist. During his undergraduate degree, Jacob worked on a broad array of projects, spanning biochemistry, computational biology, bioinformatics, genetics, soft-matter physics and historical research. His strengths include programming, statistics, machine learning and experiment design.

Jacob Peacock Headshot

3 Reasons hero

Research Reports

Effectiveness of a Theory-Informed Documentary to Reduce Meat and Animal-Product Consumption: Three Randomized Controlled Experiments

Three studies of a documentary to reduce animal product consumption find little impact.

Sep 21, 2021
live-shackle-slaughter-worker-chicken-suffering-Vipavlenkoff-Shutterstock

Prevalence of Stunning Methods in Broiler Chicken Slaughter in the United States

Estimating the percentage of chickens raised for meat slaughtered with higher-welfare systems.

Aug 10, 2021
Cow milk hero

Research Reports

Milking It: Exploring the impact of plant-based milk in the US

An analysis of data and existing research on plant-based and dairy milk consumption and the relationships between the products.

Jun 29, 2021
chickpea-sandwich-stockphoto

Research Reports

Interventions to reduce meat consumption by appealing to animal welfare: Meta-analysis and evidence-based recommendations

A meta-analysis of animal-related appeals to reduce animal product consumption.

Jun 08, 2021
plant-based-proteins-veggies-legumes

Research Reports

Is the US Rate of Veganism and Vegetarianism Increasing? A Meta-Analysis

A comprehensive analysis of changes in vegetarian and vegan rates over time.

Nov 11, 2020
pig-suffering-in-factory-farm

Research Reports

Is Animal Cruelty or Abolitionist Messaging More Effective: A Reanalysis

A reanalysis of a study examining the effect of different messages on intended future animal product consumption.

Sep 14, 2020
group-brown-chickens-sunshine-greenery-focus-single-foreground

Research Reports

Measuring Better Chicken Commitment–Compliant Chicken Supply

A review of methods for measuring progress towards improved broiler welfare.

Aug 20, 2020
Broiler chicken on muted background

Research Reports

Empirical Research in Farm Animal Advocacy January 2020

What happened in farm animal advocacy research January 2020.

Mar 12, 2020
two-free-brown-hens-foraging-grass

Research Reports

Impact of corporate commitments to source cage-free eggs on layer hen housing: Preregistration for an observational study

A protocol for our upcoming study of the global effects of cage-free commitments on gettings hens out of cages.

Jan 30, 2020
cafeteria-line-buffet-trays-food

Research Reports

Surveying US College and University Dining Services for Potential Collaboration on Diet Change Research 2017-2018

Screening 66 US campuses to identify new opportunities for research on reducing the consumption of animal products.

Feb 20, 2019
veggies-salad-bowl-beans-green

Research Reports

Measuring Change in Diet for Animal Advocacy

Exploring the challenges of self-reporting diet and alternative approaches to measuring the consumption of animal products.

Nov 07, 2018
Teal Pattern

Research Reports

Which Farm Animal Photos are Most Likely to Inspire People to Eat Vegan: A Reanalysis

A reanalysis of a randomized study on the impact of different images of farm animals.

May 04, 2018
veggie-burger-slate-grey-bg

Research Reports

Which Request Creates the Most Diet Change: A Reanalysis

A reanalysis of a randomized controlled trial examining the effect of different messages on animal product consumption.

Nov 13, 2017
Teal Pattern

Research Reports

Which Leaflet is More Effective: A Reanalysis

A reanalysis of a randomized study on the amount of diet change resulting from viewing two different leaflets.

Aug 11, 2017