A sighting of nearly 300 humpback whales gathered together off South Africa's west coast marks a stunning environmental victory—and reveals an urgent new threat. Chris and Monique Fallows, observing the supergroup last December, described it as extraordinary. What they documented represents one of conservation's greatest successes: a species brought back from the brink of extinction through international agreement. Yet that same geopolitical moment that allowed them to witness this recovery now endangers it.
The humpback whale's rebound is real. Forty years ago, an international whale hunting ban came into effect in 1986. At the height of whaling, fewer than 10,000 humpbacks remained in the southern hemisphere. Today, assessments by scientists and the International Whaling Commission show more than 100,000 whales now inhabit those same waters. The Fallows counted 299 whales in their supergroup—documented through photographs of flukes, or tails—making it appear to be the largest group of humpback whales ever sighted, according to Happywhale, a global database built largely by citizen scientists.
How International Cooperation Saved a Species
Els Vermeulen, chief scientist at the University of Pretoria's Whale Unit, called the hunting moratorium "one of the strongest conservation success stories in the marine environment." Humpbacks are generally solitary or move in small pods, but they gather in supergroups in food-rich areas where they feed on krill or small fish. Vermeulen explained that humpbacks in supergroups make underwater sounds that attract other whales, a behavior that's become visible again as populations recovered. Sightings of humpbacks are increasing across other parts of the Southern Hemisphere as well.
But the recovery remains fragile. The World Wildlife Fund notes that gains have been mixed for other whale species. Seven out of 14 great whale species are classified as endangered or vulnerable by the International Union for Conservation of Nature. North Atlantic right whales, critically endangered, number only around 380 now. Threats persist: entanglement in commercial fishing equipment, collisions with ships, and climate change all take their toll.
A New Crisis: Geopolitical Shipping Routes
Now a new danger has emerged—one rooted in conflicts thousands of miles away. About 2 years ago, when the Israel-Hamas war broke out in December 2023, Yemen's Houthi rebels began attacking ships in the Red Sea. That conflict, made worse by the Iran war and security concerns over the Strait of Hormuz, has forced a dramatic shift in global shipping patterns. Vessels that once passed through the Red Sea now route around Africa instead.
The numbers are staggering. A preliminary assessment Vermeulen co-authored showed that shipping around the southern point of Africa has quadrupled since December 2023. More ships mean more collisions. Gregg Oelofse, coastal and environmental manager for Cape Town, explained the grim reality: "We'll see the propeller strike often through the whale's body. So, it's like these big cuts in the whale's body." Some whale carcasses wash ashore bearing this evidence of vessel strikes. Most whales killed by ships sink in the ocean, leaving no detailed statistics—a gap that obscures the true scale of the problem.
The Case for Institutional Protection
Vermeulen and others are lobbying for official speed limits on ships near the South African coast. Lower speeds would give vessels time to spot whales in their path and avoid collision. It's a straightforward regulatory solution to a problem created by forces beyond the marine environment itself. The recovery of humpback whales depended on nations agreeing to restrain commercial interests for the sake of conservation. That same principle—that markets and geopolitical interests must bend to environmental protection—now applies to shipping lanes.
The irony is sharp. A species saved through international cooperation and restraint now faces a threat born from conflict and the economic pressures of rerouted global commerce. The humpback's recovery shows what's possible when nations prioritize collective responsibility. The current shipping crisis shows what happens when that responsibility lapses.
Why This Matters:
The humpback whale's rebound from near extinction to over 100,000 animals demonstrates that environmental protection works when backed by binding international agreements and enforced restraint on commercial activity. Yet the quadrupling of shipping traffic around Africa since December 2023—driven by geopolitical conflict—now threatens that hard-won recovery. This collision between conservation success and unregulated market forces illustrates a fundamental center-left concern: without active institutional oversight and democratic control over commerce, even our greatest environmental victories remain vulnerable. The proposal for speed limits on ships represents the kind of regulatory intervention that protected whales from hunting; it's the same principle applied to a new crisis. Without such protections, the recovery of humpback whales could become merely a temporary reprieve rather than a lasting restoration.