SOS Foundation Logo
Sustainability of Sustainability
Research Unit
SOS Foundation
Sustainability of Sustainability Foundation

SOS Research Unit

Translating nature into adaptive futures

SOS Foundation40+ Publications800+ Citations
Overview

Who we are

The Research Unit of the Sustainability of Sustainability Foundation (SOS) is co-directed by Cong Liu and Wei-Ping Chan, two interdisciplinary scientists working across ecology, evolutionary biology, data science, and artificial intelligence.

The unit focuses on translating biological, computational, and social systems to enable more adaptive and resilient approaches to sustainability. Rather than optimizing for fixed outcomes, its research explores how knowledge from natural systems can be structured, interpreted, and applied across domains under conditions of uncertainty.

To support this, the unit develops integrated pipelines that combine diverse hardware systems, data acquisition processes, and machine learning methods to capture and analyze nature at scale. These workflows span data collection through automated analysis, forming the foundation for phenomics and large-scale nature digitization.

By linking physical environments, data infrastructure, and analytical models, the unit works to transform nature collections and field observations into structured, accessible knowledge. This enables new forms of cross-domain application: conservation, bioinspired design, and beyond.

Internet of Bioinspiration (IoBI)Mountain Digital Twins (MDT)
Field work
Field work
Lab work
Lab work
Education & outreach
Education & outreach
Research Directors

Meet the Research Directors

Overlapping yet complementary — spanning hardware, field collection, lab work, software development, AI-driven analysis, and real-world application.

Cong Liu
Cong Liu
Research Director, SOS Research Unit
Associate at Museum of Comparative Zoology, Harvard University
Research focus
Ant SystematicsConservation GenomicsMacroevolutionAI for medical and pharmaceutical applications
Personal Website
Wei-Ping Chan
Wei-Ping Chan
Research Director, SOS Research Unit
Associate at Department of Organismic and Evolutionary Biology, Harvard University
Research focus
Nature Digitization & AIClimate Change BiologyMorphological quantificationBioinspirations
Personal Website
7 Research Themes

What we study

Four overlapping themes where both directors contribute, and three complementary areas.

OverlapComplementary
Nature Digitization & Bioinspired Translation
01
Overlap

Nature Digitization & Bioinspired Translation

Developing integrated pipelines that translate natural systems into structured, computationally accessible data and extend them into real-world applications. This includes large-scale digitization workflows, imaging and spectral acquisition, and the use of machine learning to enable the Internet of Bioinspiration (IoBI). These pipelines further support the discovery and prototyping of bioinspired materials and structures by connecting biological patterns with engineering and design contexts.

Contributions
LiuAI/ML pipelines for ant morphology (Nature Methods, 2026)
ChanMultispectral imaging systems for Lepidoptera (Comms Bio, 2022); BioMuse-X for bioinspired materials (2022–2025)
Knowledge Infrastructure & Digital Ecosystems
02
Overlap

Knowledge Infrastructure & Digital Ecosystems

Building data infrastructures that connect biological observations, environmental context, and computational models across scales. This includes standardized data collection pipelines and curated biodiversity databases — alongside Mountain Digital Twins (MDT), one of our flagship projects that creates integrated, multi-layer representations of mountain ecosystems by linking biotic and abiotic data. Together, these digital ecosystems enable repeatable analyses, interoperable datasets, and long-term monitoring frameworks supporting both fundamental research and conservation.

Contributions
LiuGABI-I: Global Ant Biodiversity Informatics (Ecology, 2023)
ChanClimate velocity datasets for global mountains (Nature, 2024)
Conservation & Species Decline
03
Overlap

Conservation & Species Decline

Insects are declining globally, yet causes and trajectories remain poorly resolved. This theme takes a multi-evidence approach — combining population genomics with long-term behavioral and light-trap time series to track changes in abundance and community composition, integrating molecular, observational, and ecological data to disentangle the roles of habitat loss, climate change, and chemical pollution.

Contributions
LiuMuseum genomics detecting endemic decline (Science, 2025)
ChanLong-term behavioral datasets tracking decline (Proc R Soc B, 2025)
Evolutionary Biology & Functional Morphology
04
Overlap

Evolutionary Biology & Functional Morphology

Eco-evolutionary perspectives on mutualism and dispersal combined with deep morphological expertise — converging on bioinspiration and understanding how evolved structures inform sustainable design.

Contributions
LiuCoevolution of mutualisms (PNAS, 2025)
ChanOne in five butterfly species sold online (Biological Conservation, 2023)
Climate Change & Mountain Ecosystems
05
Complementary

Climate Change & Mountain Ecosystems

Climate velocity frameworks and environmental variability models applied to biodiversity datasets to predict community turnover under future climate scenarios and mountain ecosystem shifts.

Contributions
ChanClimate velocity in mountains (Nature, 2024); range size (Science, 2016)
Biosecurity & Invasion Biology
06
Complementary

Biosecurity & Invasion Biology

Monitoring online wildlife trade platforms to quantify the movement of non-native species and assess invasion risk pathways. This work develops surveillance frameworks for detecting high-risk organisms in e-commerce networks before they establish in new environments — combining large-scale data scraping, species identification, and risk modelling.

Contributions
LiuMonitoring online ant trade reveals high invasion risk (Biological Conservation, 2023)
Selected Publications

Publication record

Co-director names appear in bold. Full lists on personal websites.

  1. Nature Methods
    Katzke J, …, Liu C, et al. (2026). High-throughput phenomics of global ant biodiversity.
  2. Science
    Liu C, et al. (2025). Genomic signatures indicate massive decline of endemic island insects.
  3. PNAS
    Vidal MC, Liu C, et al. (2025). Partner dependency alters patterns of coevolutionary selection in mutualisms.
  4. Nature
    Chan WP, et al. (2024). Climate velocities and species tracking in global mountain regions.
  5. Communications Biology
    Chan WP, et al. (2022). A high-throughput multispectral imaging system for museum specimens.
  6. Science
    Chan WP, et al. (2016). Seasonal and daily climate variation have opposite effects on species elevational range size.
Showing 6 of 12 · highlighted journals only
Contact

Prospective Students & Collaborators

We welcome inquiries from students and researchers at all career stages.

SOS Foundation
SOS Research Unit
Sustainability of Sustainability Foundation

We are open to collaboration with students and researchers interested in biodiversity informatics, digitization, climate–biodiversity dynamics, evolutionary morphology, and bioinspiration. Inquiries are welcome at all career stages — from middle and high school through undergraduate, graduate, and postdoctoral.

Please reach out through the SOS Foundation main site, or directly through the personal websites of the Research Directors.