Results 71 to 80 of about 1,771 (171)

Functional Anatomy of the Hearts of Lungfishes and Amphibians [PDF]

open access: yesAmerican Zoologist, 1968
Lungfishes and amphibians have bimodal gas exchange, but various species employ airbreathing with lungs to different degrees. An increased use of pulmonary breathing is correlated with progressive structural and functional separation of the pulmonary and systemic vascular circuits.
K, Johansen, D, Hanson
openaire   +2 more sources

Estivation Strategies of Invasive Snail Pomacea canaliculata in Paddy Fields: Roles of Gut Microbiota and Digestive Gland Metabolism

open access: yesEcology and Evolution, Volume 16, Issue 8, August 2026.
During the summer fallow period, Pomacea canaliculata enters estivation under high temperature and drought stress yet maintains a survival rate exceeding 92%. Restructuring of the gut microbiota and metabolic adaptations in the liver, particularly the stability of fatty acid profiles, underpin its strong estivation tolerance.
Fucheng Yao   +5 more
wiley   +1 more source

The South American lungfish Lepidosiren paradoxa as a new host for Trichodina quelenii

open access: yesBrazilian Journal of Biology, 2018
Recently, the South American lungfish Lepidosiren paradoxa is being found inside aquaculture ponds, and even though there are a few studies on their parasite fauna, there is still much to be reported.
G. Pala   +3 more
doaj   +1 more source

Abundant interactions and feedbacks between aquatic deoxygenation and the other planetary boundaries suggest “unsafe” levels of oxygen loss with far‐reaching impacts

open access: yesLimnology and Oceanography, Volume 71, Issue 7, July 2026.
Abstract Oxygen is critical for nearly all life on Earth, including aquatic species that breathe dissolved oxygen in both freshwater and marine systems. The rapid, global, and anthropogenic loss of dissolved oxygen known as “aquatic deoxygenation” threatens life in these environments, the human communities that depend on them, and Earth system ...
Erica M. Ferrer   +8 more
wiley   +1 more source

Stepwise formation of autostyly in lungfishes revealed by comparative analysis of palatoquadrate [PDF]

open access: yes古脊椎动物学报 (中英文版)
Autostyly, defined by fusion of the palatoquadrate to the neurocranium and loss of the hyomandibula as a suspensory element, is a hallmark of lungfish cranial organization among sarcopterygians, yet its evolutionary origin remains incompletely understood.
QIAO Tuo, LIU Cheng-Xi, CUI Xin-Dong, ZHU Min
doaj   +1 more source

Specialized metabolism and biochemical suppression during aestivation of the extant South American lungfish --Lepidosiren paradoxa

open access: yesBrazilian Journal of Biology
Lepidosiren paradoxa (pirambóia) is the single representative of Dipnoan (lungfish) in South America. This species is considered a living fossil, in spite of some reports describing this fish as having a very specialized life style.
L. S. B. MESQUITA-SAAD   +4 more
doaj   +1 more source

Visual ecology of the Australian lungfish (Neoceratodus forsteri)

open access: yesBMC Ecology, 2008
Background The transition from water to land was a key event in the evolution of vertebrates that occurred over a period of 15–20 million years towards the end of the Devonian. Tetrapods, including all land-living vertebrates, are thought to have evolved
Vorobyev Misha   +4 more
doaj   +1 more source

LUNGFISHES' BALANCING ACT [PDF]

open access: yesJournal of Experimental Biology, 2007
![Figure][1] Our bodies are constantly working to keep everything in balance; when we exercise, not only do we breathe harder to get more oxygen to our muscles, but also to get rid of the painful lactic acid `burn'. All air breathing land dwellers deal with acid – an excess of protons –
openaire   +1 more source

The Relevance and Resilience of Evo‐Devo in 2025: The Biennial Meeting of the Pan American Society for Evolutionary Developmental Biology

open access: yes
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 5, Page 378-382, July 2026.
Mark Rebeiz   +9 more
wiley   +1 more source

Specialized metabolism and biochemical suppression during aestivation of the extant South American lungfish ¾Lepidosiren paradoxa

open access: yesBrazilian Journal of Biology, 2002
Lepidosiren paradoxa (pirambóia) is the single representative of Dipnoan (lungfish) in South America. This species is considered a living fossil, in spite of some reports describing this fish as having a very specialized life style.
MESQUITA-SAAD L. S. B.   +4 more
doaj  

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