Sharp declines among young adults in their 20s, who are much less likely to get married than they were just 15 years ago, ...
The U.S. population size is also not declining. Currently, despite fertility below the replacement level of 2.1 children per ...
Students take part in a "two days of fun at the beginning of the school year" activity at Chengguan No.1 Primary School in Congjiang, Southwest China's Guizhou Province, on September 2, 2025. The ...
The spadenose shark (Scoliodon laticaudus) is one of the smallest members of the requiem shark family and found in shallow tropical and subtropical waters of the Indian and western Pacific Oceans. The ...
In the vast oceans where most fish species reproduce by laying eggs, one remarkable group of sharks stands apart with a reproductive strategy that more closely resembles mammals than their fishy ...
Pregnant veterans would no longer be able to receive an abortion in a hospital operated by the Department of Veterans Affairs, including in cases of rape or incest or when a pregnancy threatens their ...
(Paris, France, Monday, 30 June 2025) A new international study presented today at the 41 st Annual Meeting of the European Society of Human Reproduction and Embryology (ESHRE) reveals that IVF cycles ...
Key Laboratory of Integrated Regulation and Resources Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China ...