Is an organism a sum of its parts, or should they be considered as a whole? New research on ferns shows how the way scientists understand evolution affects how they study life.

The 2026 IRA limit is $7,500 for those under 50 and $8,600 for those over 50 because of catch-up contributions. Exceeding IRA contribution limits incurs a 6% tax penalty each year. SEP and SIMPLE IRAs ...

SIMPLE IRA contributions are tax-deductible the year they are made. Employees can contribute up to $17,000 in 2026, with higher limits for those 50 or older. Employers can match employee contributions ...