The Atlas blue butterfly, also known as Polyommatus atlantica, has been genetically confirmed as having the highest number of ...

An unassuming butterfly called the Atlas blue has been confirmed to have the greatest known number of chromosome pairs of any ...

The butterfly lives in the mountain ranges of Morocco and northeast Algeria. It carries 229 pairs of chromosomes, while close relatives such as the Common blue butterfly have only 24.

Heat and cold reshape fertility in reptiles, from scrambled sperm to sex reversal, with lessons for evolution under climate ...

Researchers have uncovered a previously unknown mechanism that safeguards the chromosome ends from being mistakenly repaired ...

Merotelic kinetochore (single kinetochore attaches to microtubules from two spindle poles) has been proposed to be the major mechanism underlying the spontaneous formation of lagging chromosomes, ...

Researchers found marijuana's active ingredient may disrupt egg cells and embryos, adds to research that marijuana use can ...

High levels of THC, the main psychoactive compound in marijuana, may affect how eggs develop and could lead to fertility ...