anomalous+case
131Cosmic string — Not to be confused with string in string theory. Cosmic strings are hypothetical 1 dimensional (spatially) topological defects which may have formed during a symmetry breaking phase transition in the early universe when the topology of the vacuum …
132Living fossil — is an informal term for any living species (or clade) of organism which appears to be the same as a species otherwise only known from fossils and has no close living relatives. These species have all survived major extinction events, and… …
