Articles on Regeneration

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A child may temporarily have baby teeth, adult teeth and gaps all at once. BSIP/Universal Images Group via Getty Images

Why do people have baby teeth and adult teeth?

A pediatric dentist and an anthropologist explain how baby teeth and adult teeth help humans chomp their food over a long lifespan.
Old growth mountain ash forest in the Maroondah water supply catchment, Victoria. Chris Taylor

Logging devastated Victoria’s native forests – and new research shows 20% has failed to grow back

Forest logging records, satellite data, on-ground surveys and drone photography show nearly 20% of logged areas in Victoria failed to regenerate over the past 40 years.
Biobots could one day be engineered to deliver drugs and clear up arterial plaque. Kriegman et al. 2020/PNAS

Biobots arise from the cells of dead organisms − pushing the boundaries of life, death and medicine

Given the right conditions, certain types of cells are able to self-assemble into new lifeforms after the organism they were once part of has died.
The melanocytes in zebrafish stripes share many similarities to those in people. Dan Olsen/iStock via Getty Images Plus

Zebrafish share skin‑deep similarities with people, making them helpful models to study skin conditions like vitiligo and melanoma

Zebrafish melanocytes cause diseases similar to those in people when they don’t work properly. Studying how they regenerate after injury could lead to new treatments for hair color loss and vitiligo.
Tylenol overdose is one of the leading causes of liver injury requiring liver transplantation. Elena Merkulova/iStock via Getty Images

Helping the liver regenerate itself could give patients with end‑stage liver disease a treatment option besides waiting for a transplant

Liver transplant waitlists can range from 30 days to over five years. Developing treatments that spur liver regeneration could help reduce demand for scarce organs.
Whether in the wild or in the lab, worms have an interesting story to tell. Sinhyu/iStock via Getty Images

Why do scientists care about worms?

‘Worm’ is really a catchall term for a huge variety of animals with different characteristics that span the tree of life. They hold clues about our own origins as well as hints about human health.

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