Podcast Summary: "¿Qué entienden los perros cuando nos entienden?"

Podcast: Más de uno
Host: Carlos Alsina, OndaCero
Guest: Alberto Aparici
Date: January 29, 2026

Overview

In this episode, host Carlos Alsina and scientific communicator Alberto Aparici delve into a fascinating and often humorous discussion: what do dogs truly understand when they seem to "understand" us? The conversation mixes scientific findings, anecdotes, and philosophical musings on canine cognition, language, and the unique relationship between dogs and humans.

Key Discussion Points & Insights

1. The "Library" Segment as a Gateway

• (00:17–03:15) The segment playfully starts with Alberto bringing his "radio library," a tool to set the imaginative tone and introduce books and themes about animal cognition and communication.
• Referenced works include:
  • "Cómo se comunican los animales" (Gonzalo Rodríguez Ruiz)
  • "En la mente de un perro" (Alexandra Horowitz)
  • "Cuando ellos se van" (Julia Navarro)
  • "Su olor después de la lluvia" (Cédric Sapin-Defour)

2. Canine Comprehension: What Do Dogs Understand?

• (03:15–05:12) Books and anecdotes serve as a springboard to discuss recent scientific research:
  • Most dogs can learn and recognize between 100 and 200 human words, mainly verbs or action-related terms.
  • A minority (about 1%) are exceptional at learning nouns and can, with training, attach names to hundreds of objects — some even up to a thousand.
  • Notable quote:
    Alberto Aparici (04:04):
    “Los perros... son capaces de reconocer algunas palabras humanas. [...] La mayoría de esas palabras... son verbos o tienen que ver con acciones. Son bichos de acción, los perros.”

3. New Research: Dogs Learn Like Babies

• (05:12–06:53) Alberto explains a cutting-edge article from Science magazine:
  • Exceptional dogs can learn object names just by observing two humans interact and name things — like young children do.
  • Notable quote:
    Alberto Aparici (05:54):
    “El perro, viendo este tipo de interacciones durante apenas unos minutitos, pues se hipea de que la palabra... esto se llama atril, y esto es noticia científicamente... es el verbo hipear, que lo pillan los perros.”
  • The ability to learn by social observation is akin to pre-linguistic learning in human infants.

4. Do Dogs Truly Understand Language?

• (06:53–08:53)
  • Dogs are good at recognizing words, but understanding language involves more — like grammar and sentence construction.
  • Analogy: Memorizing a Japanese dictionary doesn’t make someone fluent in Japanese.
  • What dogs clearly excel at is social cognition: inferring relevant information from human behavior, intentions, and social cues.
  • Notable quote:
    Alberto Aparici (07:53):
    “Estos perros han observado cómo interaccionan dos humanos... han deducido el sonido que corresponde a una cosa. [...] Los perros tienen un alto nivel de cognición social.”

5. Limits to Linguistic Understanding

• (09:05–10:58)
  • No conclusive evidence that even the smartest dogs can formulate sentences or truly “understand” language.
  • Dogs using speech button boards can sometimes press pairs of related words (“comida” and “premio”), but this is very rudimentary.
  • Social cues, body language, and tone often explain why dogs seem to “understand” context or situations.
  • Notable exchange:
    Alberto Aparici (10:32):
    “Eso se puede conseguir solo con cognición social. Tu manera, tu lenguaje corporal, el tono de tu voz, aunque no estén entendiendo nada de lo que estás diciendo, saben que tú les estás diciendo que algo que esperan no va a suceder...”

6. Imitation, Domesticity, and Social Intelligence

• (11:14–12:33)
  • Dogs may imitate human vocalizations as social behavior or attempts to participate, not as evidence of language use.
  • The process of domestication has made dogs extraordinary social integrators within human groups, sometimes even “thinking” of themselves as family members.
  • Notable quote:
    Alberto Aparici (12:00):
    “La más importante es para integrarse dentro del grupo humano... hay perros que parecen creer que forman parte de la familia.”

7. What Would Constitute Animal “Language”?

• (13:08–14:25)
  • True language requires understanding syntax (e.g., “perro muerde a Alberto” vs. “Alberto muerde a perro”) and mental representations — imagining things not currently present.
  • No experiments have yet shown conclusively that dogs form such mental representations or use syntax.
  • Some primates and rats show mental representation in controlled studies, but not yet dogs.
  • Notable quote:
    Alberto Aparici (14:14):
    “Lo revolucionario sería que un perro... te pudiese decir: ‘ese juguete que tú, Begoña, no sabes dónde está, está detrás del sofá’... el perro tiene que estar imaginando el juguete y el sofá en su cabeza.”

8. Individual Differences: Why Are Some Dogs So Gifted?

• (16:10–17:42)
  • The most talented word-learning dogs were only identified in 2021. Their abilities are suspected to be due to individual physiological differences — neurotransmitter variations (e.g., dopamine, acetylcholine) affecting attention and learning.
  • Environmental factors, especially the training environment and owner interactions, are also crucial.
  • Notable quote:
    Alberto Aparici (16:34):
    “Se sospecha que son diferencias fisiológicas... la dopamina te dice esto es importante, esto es guay... también depende de cómo les entrenes.”

Memorable Quotes

• “Lo que demuestra esto es que los perros tienen un alto nivel de cognición social.”
  — Alberto Aparici (07:53)

• “Tu manera, tu lenguaje corporal, el tono de tu voz, aunque no estén entendiendo nada de lo que estás diciendo, saben que tú les estás diciendo que algo que esperan no va a suceder.”
  — Alberto Aparici (10:32)

• “Siempre la traigo aquí… no hace falta darle fuerte.”
  — Carlos Alsina (01:34) [humorous technical aside during the “library” imaginary scene]

• “La más importante es para integrarse dentro del grupo humano... hay perros que parecen creer que forman parte de la familia.”
  — Alberto Aparici (12:00)

• “El lenguaje no consiste en construir frases, consiste en tener cosas en la cabeza para poner dentro de una frase.”
  — Alberto Aparici citando a un lingüista (15:44)

Important Timestamps and Segments

• 00:17–01:15 – Introduction, playful “library” entry
• 03:15–05:12 – Discussing how many words dogs can comprehend
• 05:12–06:53 – Dogs learning words by observation, research in Science
• 06:53–08:53 – Clarifying dogs’ linguistic skills vs. true language
• 09:05–10:58 – Limitations: dogs using buttons, social cognition vs. language
• 11:14–12:33 – Domesticity, imitation, and intelligence
• 13:08–14:25 – Requirements for language: syntax and mental representations
• 16:10–17:42 – Why are some dogs gifted? Role of physiology and training

Final Thoughts

This episode is a lively, accessible, and scientifically robust exploration of what dogs “understand” about us — and what that says about cognition, language, and the special relationship between humans and dogs. The answer is nuanced: dogs are astonishingly skilled social partners and word learners, but evidence for genuinely linguistic understanding is, for now, lacking. Still, as Alberto Aparici notes, the cognitive gap may not be as wide as we think.

For listeners (and dog lovers) seeking a smart, nuanced, and amusing treatment of canine intelligence, this episode delivers both insight and entertainment!