Fernando Perini @faperini.bsky.social · 03/12/2025This suggests that the presence of the pouch plays a crucial role by providing a safe environment for continued development after birth, but its evolution is tied to trade-offs between offspring quantity and maternal investment. 010
Fernando Perini @faperini.bsky.social · 03/12/2025Ancestral state reconstructions show that the pouch has been gained and lost multiple times during marsupial evolution, although the ancestral marsupial condition remains uncertain, but most likely corresponding to pouch absence. 101
Fernando Perini @faperini.bsky.social · 03/12/2025We used phylogenetic comparative methods to investigate the relationship between pouch presence, body mass and litter size across 195 species. Our results show that the probability of pouch presence increases with body mass and decreases with litter size. 100
Fernando Perini @faperini.bsky.social · 03/12/2025This is the question we set out to answer in a recent article published online by the journal Evolution. This article was written in collaboration with Daniel Casali, Gabby Guilhon, and @rmissagia.bsky.social, and is also part of Mariah Yoshikawa's master's thesis. doi.org/10.1093/evol...doi.orgBody size and litter size as predictors of pouch presence in marsupialsAbstract. The marsupial pouch is a key adaptation for offspring protection and development, yet its evolutionary drivers remain unclear. While body size ma 100
Fernando Perini @faperini.bsky.social · 03/12/2025When we think of marsupials, the first thing that comes to mind is the presence of a pouch. But despite this striking anatomical feature, not all marsupials have it. What factors determine its presence or absence? 141
Fernando Perini @faperini.bsky.social · 14/11/2025The paper was also recently published in the journal Ichnos and you can find it here: doi.org/10.1080/1042...doi.orgA new ichnospecies of Nihilichnus Mikuláš et al., 2006 from the Palaeogene of South America: trace makers and ichnological and palaeobiological implicationsDentalites on bones represent important evidence for revealing prey preferences and feeding ecology of extinct animals. Here, we present a new ichnospecies of Nihilichnus based on perforations on m... 000
Fernando Perini @faperini.bsky.social · 14/11/2025If you're interested, come check our poster on Saturday, November 15th, 4 PM. #SVP2025 100
Fernando Perini @faperini.bsky.social · 14/11/2025This work was developed by me and may coauthors, @sergiolages.bsky.social, Leonardo de Melo Carneiro, Luana Cardoso de Andrade, and Rafael Costa da Silva. 100
Fernando Perini @faperini.bsky.social · 14/11/2025In the case of N. fissuratus, the perpetuator was likely sparassodont metatherians, one of the few compelling evidence of this kind of predator-prey in the South American fossil record. 100
Fernando Perini @faperini.bsky.social · 14/11/2025These large punctures on the symphiseal part of the jaws are consistent with predation by metatherians, as practiced by living didelphids 100
Fernando Perini @faperini.bsky.social · 14/11/2025We describe a new ichnospecies, Nihilichnus fissuratus isp. nov., which are constituted of symmetrical marks on the mandibles, likely from antagonistic teeth. 100
Fernando Perini @faperini.bsky.social · 14/11/2025I'll make a presentation on #SVP2025 about what may be the first indications of predation by sparassodonts, an extinct group of South American metatherian predators. 131
Fernando Perini @faperini.bsky.social · 08/08/2025I will present today about the geographic and sexual skull variation in yellow-throated martens (subgenus Charronia) at the "General Morphology and Morphological Evolution 1" session of #ICVM2025 000
Fernando Perini @faperini.bsky.social · 15/07/2025PeerJ Sex- and age-related morphological and functional differences in the skull of Eira barbara (Linnaeus, 1758) (Carnivora, Mustelidae) peerj.com/articles/197... @peerj.bsky.social My co-author, Fernando Sicuro, and I finally published one of the articles we had in press.peerj.comSex- and age-related morphological and functional differences in the skull of Eira barbara (Linnaeus, 1758) (Carnivora, Mustelidae)Background Morphological differences related to age and sex have been extensively documented in Nearctic and Palearctic mustelids, largely due to the interest in the commercial management of species s... 011
Fernando Perini @faperini.bsky.social · 27/03/2025Quando Fonseca se for, perderemos as chaves para o futuro climático - ((o))eco - oeco.org.br/analises/qua...oeco.org.brQuando Fonseca se for, perderemos as chaves para o futuro climático - ((o))ecoQuando Fonseca se for, perderemos as chaves para o futuro climático 000
Fernando Perini @faperini.bsky.social · 21/11/2024I will be talking about cranial evolution in martens, wolverines, and tayras tomorrow at the "Macroevolução 2" session of the I Congresso Brasileiro de Biologia Evolutiva, in Curitiba, Brazil! #SBBE #SBBE24 #biologiaevolutiva 010
