Author: Kristina Siju

  • Origami 101

    What is Origami?

    Origami does not originate from a sole inventor, it was crafted over centuries by many different hands for various ceremonial purposes in Japan and even China (Robinson, 2026). The word we use today, origami, is derived from the Japanese words ori which means folded and kami which translates to paper. While paper itself was first developed in China before spreading to Japan, folding paper into decorative and symbolic forms became especially refined in Japanese culture over time. Early uses of folded paper included religious ceremonies, gift wrapping, and formal exchanges, where presentation held great meaning.

    Fast forwarding centuries, today origami is seen worldwide. A simple YouTube search nowadays can teach even the newest of the new how to craft an origami chameleon, like how I learnt! What was once a traditional practice has now grown into a global hobby, mathematical practice, and even an area of scientific research.

     

    Math, Science, and Folds

    It comes to no surprise when we see the intricate works by masterful artists, that the art within folding comes from mathematical roots. For example, take the common fold that basically all origami pieces start with: the square piece of paper folded diagonally corner to corner and then along the sides, top to bottom and left to right. These folds create lines of symmetry and reference points that help guide more intricate folds later on. Mathematically, these folds create either a valley or mountain based on the value of the angle between the two adjacent planes created by the fold (Kunz, 2024). A valley fold bends inward like a “V,” while a mountain fold rises outward like a mountain. By combining these two simple fold types in different orders, locations, and sizes, folders can create highly detailed animals, flowers, and geometric structures. 

    Additionally, origami also has strong roots in more of a geometric application of math, with many models and folds often relying on fractions, bisectors, symmetry and so much more. In the scientific world, origami has received its share of the spotlight from inspiring compact folded solar panel designs for satellite use to shaping medical stents used in patients. 

     

    My Folds and Why I do it

    My goal when folding is simple: just don’t make it ugly. I find my inspiration, to recreate art through online tutorials, to be fueled by the passion and creativity of others. I folded the blue origami dragon below to surprise one friend, and the raccoon for another. I trace my folding skills back to one main motivation: wanting my creations to be as perfect as possible for the people around me. I have made plenty of lousy folds, but never when I feel a real sense of purpose behind them. When I fold for someone else, I tend to care more, focus more, and try as hard as I can. I am happy to say I will keep carrying on origami traditions. Mine may not be embedded in ceremonial, mathematical or even scientific purposes, but they still come from a place of creativity, curiosity, and humanity.

    References

    Origami created and photographed by Kristina Siju

    Origami with Jo Nakashima. (2021, September 14). ORIGAMI CHAMELEON (Jo Nakashima ). YouTube. https://www.youtube.com/watch?v=if7iSuzNn38

    Nakashima, J. (2015). Origami Dragon (Jo Nakashima) [YouTube Video]. In YouTube. https://www.youtube.com/watch?v=kUsxMXwCW8A

    Muneji Fuchimoto ORIGAMI CHANNEL. (2020, December 8). 「折り紙」アライグマ(racoon origami)の折り方. YouTube. https://www.youtube.com/watch?v=X2FYuvt-U80

    Geometry – Ancient geometry: abstract and applied. (n.d.). Encyclopedia Britannica. https://www.britannica.com/science/geometry/Ancient-geometry-abstract-and-applied

    Thesis, B., Kunz, C., & Cannas Da Silva, A. (2024). Mathematics of Origami. https://people.math.ethz.ch/~acannas/Student_Papers/BSc_Theses/2024_bsc_kunz_mathematics_of_origami.pdf

  • Mandai Bird Paradise: Asia’s Biggest Aviary Sanctuary

    The Mandai Bird Paradise is the biggest bird conservatory in Asia, inaugurated back in May 2023. As one of the six pillars of the Mandai Wildlife Reserve, the incredible sanctuary covers over 42 acres of land on Mandai Island in Singapore. The reserve houses around 3,500 birds encompassing over 400 different species. Mandai Nature is the conservation arm of the Mandai Wildlife Group, which is dedicated to providing a haven for all these species through the Mandai Bird Paradise and to preserving Southeast Asia’s incredible biodiversity through conservation efforts, with a focus on averting species extinction (Temasek Trust, 2024). 

    Such a variety poses a rather obvious question: How? In order to answer this question, we must chart our way through the science behind conservation, biodiversity and rehabilitation!

    Conservation

    Conservation, as defined by the Merriam-Webster dictionary, is to carefully preserve and protect something. In a wildlife context, it is orchestrated management of natural resources to prevent exploitation, destruction, or neglect. Conservation efforts to preserve biodiversity are not just about protecting animals in isolation, but in our context, it is about the creation of an entire ecosystem where species can thrive naturally.

    At Mandai Bird Paradise, conservation takes an approach similar to this article on biodiversity conservation by diversity (Ramón et al., 2020). In-situ conservation focuses on protecting species in their natural habitats, whereas, ex-situ conservation, which is practiced at Mandai, provides controlled environments where vulnerable or endangered species can be bred, monitored, and protected from immediate threats such as habitat loss or poaching.

    The sanctuary also participates in international breeding programs and collaborates with global conservation organizations to ensure genetic diversity is maintained among species. This is critical because reduced genetic diversity due to issues such as environmental changes from global warming can make populations more susceptible to disease. Through these coordinated efforts, Mandai Bird Paradise becomes more than just a sanctuary, but a cornerstone in the Mandai Wildlife Group’s stand as an active contributor to global conservation science.

     

    Biodiversity

    Biodiversity refers to the variety of life in a particular habitat or ecosystem, encompassing differences in species, genetics, and ecological roles. The presence of over 400 bird species at Mandai Bird Paradise highlights not only the richness of different avian life present but also the complexity of maintaining such diversity within a single environment. This maintenance is done by separating the 42-acre land into around 10 unique habitats that each suit a certain group.

    Each species then gets to play its unique role in its ecosystem, from seed dispersal to pollination and pest control. By housing a wide array of species, the sanctuary effectively simulates interconnected ecological networks, allowing researchers and conservationists to better understand how these systems function.

    Maintaining biodiversity in a controlled setting requires careful planning. Factors such as diet, climate conditions, nesting environments, and social groupings must all be tailored to meet the needs of different species. For instance, tropical birds such as the Andean cock-of-the-rock (yes, you read that right) require high humidity and dense vegetation, while others may need open spaces or specific nesting structures. This level of detail ensures that the birds are not only surviving but thriving in conditions that closely resemble their natural habitats.

    Andean cock-of-the-rock

     

    Rehabilitation

    Rehabilitation is another crucial component that involves the care and recovery of injured, displaced, or trafficked birds with the goal of reintroducing them into the wild whenever possible.

    Birds that arrive at rehabilitation centers often suffer from injuries caused by habitat destruction, illegal wildlife trade, or human interference. At Mandai, veterinary teams and specialists provide medical treatment, nutritional support, and behavioral conditioning to help these birds regain their strength and natural instincts.

    One of the key challenges in rehabilitation is ensuring that birds do not become overly dependent on human care. To address this, caretakers minimize human interaction and design enclosures that encourage natural behaviors such as foraging and flight. Only when a bird demonstrates sufficient recovery and independence is it considered for release. Even when release is not possible, rehabilitation still plays an important role. These birds may become part of educational programs, helping to raise awareness about conservation issues and inspiring visitors to take action in protecting wildlife.

     

    Mandai Bird Paradise – Sanctuary & Conservation Magic

    Mandai Bird Paradise is more than the visually stunning attraction you see through my lens, it is a living example of how science, conservation, and education can come together to protect our planet’s biodiversity. By integrating conservation strategies, maintaining diverse ecosystems, and supporting rehabilitation efforts, this sanctuary embodies what modern wildlife preservation should look like. In doing so, Mandai Bird Paradise not only safeguards thousands of birds but also inspires future generations like yours and mine to value and preserve the delicate balance of life on Earth.

    Blue-crowned Parakeet

    Bits of My Time

    This reserve is one of the most beautiful places on Earth! Walking out into the Crimson Wetlands zone of the park felt like a scene straight out of a movie. There were colorful macaws soaring overhead, bright American flamingos dancing by the pond, Scarlet ibis carefully balancing on the hand rails and so much more. My exploration of the Mandai Reserve taught me so many fun facts about birds and this experience rekindled my love for all things nature. It truly gave me a fond memory to recall for the rest of my lifetime.

    References

    All Photography/Illustrations by Kristina Sarah Siju

    Mestanza-Ramón, C., Henkanaththegedara, S. M., Vásconez Duchicela, P., Vargas Tierras, Y., Sánchez Capa, M., Constante Mejía, D., Jimenez Gutierrez, M., Charco Guamán, M., & Mestanza Ramón, P. (2020). In-Situ and Ex-Situ Biodiversity Conservation in Ecuador: A Review of Policies, Actions and Challenges. Diversity, 12(8), 315. https://doi.org/10.3390/d12080315 

    Protecting Wildlife, Preserving The Future. (2023). Temasek Trust Revamp. https://www.temasektrust.org.sg/what-we-do/impact-hub/article-details/mandai-nature-impact-report-2023-2024

    Speiran S. I. M. (2025). The ‘Sanctuary Gap’: Reviewing the Research on Captive Wildlife Sanctuary Tourism. Animals : an open access journal from MDPI, 15(4), 496. https://doi.org/10.3390/ani15040496