There are certain similarities between humans and what’s around them. These similarities exist but often go unnoticed, and so does the synergy between us and nature.
A recent viral post on social media platform X (formerly Twitter) sparked curiosity about this synergy, comparing a tree’s structure to the human respiratory system. But it’s not just a cool visual. It’s rooted in science that explains efficiency in nature.
This pattern, seen in everything from blood vessels to river deltas, shows how the natural world optimises energy use.
To understand why these designs repeat across living things and what it means for our planet, we must look at a principle created centuries ago.
WHY DO BRANCHES AND LUNGS LOOK ALIKE?
Murray’s Law is a principle in biology that explains how branching networks in nature, like blood vessels, tree branches, or river systems, are organised for maximum efficiency.
Simply put, it says that the thickness of a parent branch and the thickness of its child branches follow a precise mathematical relationship, ensuring that whatever flows through them, be it blood, water, or nutrients, travels with the least possible effort and energy.
Think of it like a well-designed highway system.
The main road is wide, but as you move into smaller lanes, the total carrying capacity stays roughly the same. Nothing is wasted. Nature, it turns out, is an excellent engineer.
In 1926, physiologist Cecil D Murray figured out this pattern.
It’s why our lungs branch 23 times to create 480 million tiny air sacs, delivering oxygen efficiently.
Even Leonardo da Vinci spotted this back in 1508 while sketching realistic trees. He noted branches get thinner in a specific way to look natural.
Today, scientists see the same rule in brain networks and even galaxy clusters, spanning huge scales. It’s like the universe’s shortcut for saving energy, making complex systems work smoothly without waste.
ARE TREES LIKE LUNGS?
The relation between trees and lungs also go beyond principles and theories. They both play significant roles in the physical world and are connected.
Trees release the oxygen we inhale, while we exhale the carbon dioxide they need. Both are interconnected.
Rainforests are often also referred to as the lungs of the planet, as they are tasked with absorbing pollutants and helping the planet and its residents breathe easier.
Trees and humans are clear partners in this gas exchange, reminding us of our deep ties to nature.
These complex but also simple relationships between humans and the world around us aren’t just a topic of curious discussion. It’s also a call to protect the world around us, especially after knowing it contains a small part of us.
