Nature Is Slowing Down

A study published in Nature Communications in February by researchers at Queen Mary University of London found that species turnover in ecosystems has slowed by roughly one-third since the 1970s. The finding is paradoxical: as the climate warms faster, the natural process by which species replace one another in habitats has decelerated. The pattern holds across marine, freshwater, and terrestrial ecosystems, from bird communities on land to life on the ocean floor.

Lead researcher Dr. Emmanuel Nwankwo described nature as "a self-repairing engine, constantly swapping out old parts for new ones" and said the engine is "grinding to a halt." As human activity degrades habitats and reduces biodiversity across regions, the pool of species available to move into local ecosystems shrinks. Fewer species are left to do the replacing. "In other research we are seeing clear indications that human impacts cause the slowing of turnover," Nwankwo said. "It is worrying." The engine is running quieter because it is running out of parts.

What the text says

Job 39:5-85"Who has set the wild donkey free? Or who has loosened the bonds of the swift donkey,6Whose home I have made the wilderness, and the salt land his dwelling place?7He scorns the tumult of the city, neither does he hear the shouting of the driver.8The range of the mountains is his pasture, He searches after every green thing.

Job 38-41 contains the longest single speech God delivers in the entire Bible. Job has been demanding an answer for his suffering. God responds, and the response is not theology. It is a tour of creation.

What is remarkable about the tour is what it leaves out. God does not show Job the animals that serve human purposes: the ox that plows, the donkey that carries, the sheep that feeds. He shows Job the ones that don't. The wild donkey, who scorns the city and will not hear the driver's shout. The mountain goat, who gives birth on cliffs no human watches. The ostrich, who is foolish and fast and does not care. The hawk, who soars without human permission.

God's tone throughout these chapters is not instructional. It is closer to pride. He is showing off creatures that exist on their own terms, sustained by his hand, indifferent to human need. The wild donkey's home is the wilderness, and God made it that way. It is not a failure of domestication. It is a design.

The theological weight of this passage is often lost in readings that focus on God humbling Job. God is doing something more specific: he is establishing that creation has value independent of human use. The animals in this speech are not resources. They are not symbols. They are beings God made, sustains, and celebrates, and not one of them exists for Job's benefit.

The reflection

Ecologists call it species turnover. The researchers call nature a self-repairing engine. In Job 39, God describes it differently: as something alive, wild, and worth celebrating for its own sake.

The study measures what is being lost in percentages and trend lines. The text measures it in names: the wild donkey, the hawk, the mountain goat, the leviathan. When a species vanishes from an ecosystem and no new one arrives to take its place, the data registers a decline in turnover. The text registers something closer to a silence in a chorus God composed.