If the animals “consume” the enrichment faster than the caregivers can construct and install it, the animals may remain stressed. For custom-made objects, 3D printers may prove useful in keeping up ...

in India are working on what they believe could be a compromise—offering the reliability of animal testing without the suffering. Their proposed solution: artificial “skin” made of 3D ...

Scientists have developed a 3D-printed imitation of human skin with living cells, an advance they say could enable cosmetic testing without the use of animals. Researchers, including from the ...