National Museum

Population genomics unravel structural variation of venom-encoding genes across the desert viper genus Cerastes

Understanding the molecular mechanisms underlying phenotypic differentiation is central to evolutionary biology. Yet most traits are shaped by complex, polygenic architectures, making links between genomic change and phenotype difficult to resolve. Venom provides an advantageous...

Redescription of Paraconularia planicostata (Cnidaria, Medusozoa) from Mississippian (late Visean) carbonates in the Maritimes Basin, Atlantic Canada

Reflecting the long-term decline in the generic diversity of order Conulariida Miller and Gurley, 1896 following its peak during Mid–Late Ordovician times (Leme et al., 2008, fig. 1; Bernad et al., 2026, figs. 1, 2), the global fossil record of conulariid cnidarians in the Missis...

Biparental care is a resilient evolutionarily strategy persisting across multiple species of small carpenter bees despite low paternity

Abstract Biparental care is rare in insects and is commonly attributed to genetic monogamy, which yields high fitness benefits for caring males. The discovery of biparental care despite low male paternity in the bee Ceratina nigrolabiata challenges this view. We tested whether th...

Extending the mineralogy of U 6+ (VII.): Kristekite, [Cu 2 (H 2 O) 4 (UO 2 )(SeO 3 ) 3 ]·4H 2 O, a new mineral from Příbram, Czech Republic.

The new mineral kristekite (IMA2025-101), [Cu 2 (H 2 O) 4 (UO 2 )(SeO 3 ) 3 ]•4H 2 O, was found in the dump material of the former uranium mine at Bytíz, near Příbram, Central Bohemia, Czech Republic, where it occurs as hedgehog-like aggregates, consisting of yellowish-green tabu...

Differing Patterns of Skeletal Disarticulation in Single and Multiple Burials

ABSTRACT This study presents a comparative taphonomic analysis of skeletal remains from a military cemetery in Prague‐Karlín (18th–19th century), focusing on joint disarticulation as a proxy for reconstructing postdepositional environments. The primary objective was to determine...